DATA SH EET
Product specification
Supersedes data of 2004 Oct 21 2004 Nov 12
INTEGRATED CIRCUITS
TEA6848H
New In Car Entertainment car radio
tuner IC with Precision Adjacent
Channel Suppression
(NICE-PACS)
2004 Nov 12 2
Philips Semiconductors Product specification
New In Car Entertainment car radio tuner IC with
Precision Adjacent Channel Suppression (NICE-PACS) TEA6848H
CONTENTS
1 FEATURES
2 GENERAL DESCRIPTION
3 ORDERING INFORMATION
4 QUICK REFERENCE DATA
5 BLOCK DIAGRAM
6 PINNING
7 FUNCTIONAL DESCRIPTION
7.1 Oscillators
7.1.1 VCO
7.1.2 PLL
7.1.3 Crystal oscillator
7.2 DAA
7.3 FM signal channel
7.3.1 FM mixer 1
7.3.2 Buffer output for weather band flag
(pin WBFLAG)
7.3.3 FM keyed AGC
7.3.4 FM IF amplifier
7.3.5 FM mixer 2
7.3.6 FM IF2 dynamic selectivity
7.3.7 FM quadrature demodulator
7.3.8 Adjacent channel detector and threshold
extension
7.3.9 Bandwidth control ‘active’ flag (pin IFBWFLAG)
7.3.10 Bandwidth control monitor voltage (pin VIFBW)
7.4 AM signal channel
7.4.1 AM tuner including mixer 1 and mixer 2
7.4.2 AM RF AGC
7.4.3 AM detector
7.4.4 AM noise blanker
7.5 FM and AM level detector
7.6 IF2 filter gain alignment
7.7 Frequency offset detector/alignment
8 LIMITING VALUES
9 THERMAL CHARACTERISTICS
10 DC CHARACTERISTICS
11 AC CHARACTERISTICS
12 I2C-BUS PROTOCOL
12.1 I2C-bus specification
12.1.1 Data transfer
12.1.2 I2C-bus pull-up resistors
12.1.3 Frequency setting
12.1.4 Default settings
12.1.5 Timing requirements
12.2 I2C-bus protocol
12.2.1 Data transfer mode and IC address
12.2.2 Write mode: data byte 0
12.2.3 Write mode: data byte 1
12.2.4 Write mode: data byte 2
12.2.5 Write mode: data byte 3
12.2.6 Write mode: data byte 4
12.2.7 Write mode: data byte 5
12.2.8 Write mode: data byte 6
12.2.9 Write mode: data byte 7
12.2.10 Read mode: data byte 0
13 TEST AND APPLICATION INFORMATION
14 INTERNAL CIRCUITRY
15 PACKAGE OUTLINE
16 SOLDERING
16.1 Introduction to soldering surface mount
packages
16.2 Reflow soldering
16.3 Wave soldering
16.4 Manual soldering
16.5 Suitability of surface mount IC packages for
wave and reflow soldering methods
17 DATA SHEET STATUS
18 DEFINITIONS
19 DISCLAIMERS
20 PURCHASE OF PHILIPS I2C COMPONENTS
2004 Nov 12 3
Philips Semiconductors Product specification
New In Car Entertainment car radio tuner IC with
Precision Adjacent Channel Suppression (NICE-PACS) TEA6848H
1 FEATURES
•FM mixer 1 for conversion of FM RF (65 to 108 MHz
and US weather band) to IF of 10.7 MHz; the mixer
provides inherent image rejection; for European and
US FMband/WB(weatherband)themixerisdrivenwith
a ‘high’ injection Local Oscillator (LO); in Japan
FM band and East Europe FM band the mixer is driven
with a ‘low’ injection LO
•AM mixer 1 for conversion of AM RF to AM IF1 of
10.7 MHz
•LC tuner oscillator providing mixer frequencies for
FM mixer and AM mixer 1
•AM mixer 2 for conversion of AM IF1 to AM IF2 of
450 kHz
•Crystal oscillator providing mixer frequencies for
AM mixer 2 and FM mixer 2 and reference for
synthesizerPLL,IF count,timingfor Radio Data System
(RDS) update and reference frequency for car audio
signal processor ICs
•FastsynthesizerPLL tuning system withlocalcontrol for
inaudible RDS updating
•Timing function for RDS update algorithm and control
signal output for car audio signal processor ICs
(TEA688x, SAA77xx, TEF689x)
•Digital alignment circuit for bus controlled matching of
oscillator tuning voltage to FM antenna tank circuit
tuning voltage
•AGC PIN diode drive circuit for FM RF AGC; AGC
detection at FM mixer input; the AGC PIN diode drive
can be activated by the I2C-bus as a local function for
search tuning; AGC threshold is a programmable and
keyed function switchable via the I2C-bus
•FM IF linear amplifier with high dynamic input range
•FM mixer 2 for conversion of FM IF1 to FM IF2 of
450 kHz with inherent image rejection
•Fully integrated dynamic selectivity and
FM demodulator at IF2; improved sensitivity with
dynamic threshold extension; centre frequency of IF2
selectivity alignment via the I2C-bus
•Level detector for AM and FM with temperature
compensated output voltage; starting point and slope of
level output is programmable via the I2C-bus
•AM cascode AGC stage and RF PIN diode drive circuit;
AGC threshold detection at AM mixer 1 and IF2 AGC
input; threshold for detection at mixer 1 input is
programmable via the I2C-bus
•AM IF2 AGC and demodulator
•AM AF output switchable to provide AM IF2 for
AM stereo decoder
•AM noise blanker with detection at IF1 and blanking at
AM IF2
•Software controlled flag output
•Buffer output for weather band flag
•Adjacent channel detector, modulation detector and
frequency offset for instantaneous bandwidth control of
the integrated filter
•Flag and voltage output indicating the actual bandwidth
•I2C-busalignmentofcentrefrequencyandgainvariation
as functions of bandwidth of the IF2 filter and centre
frequency of the offset detector.
2 GENERAL DESCRIPTION
The TEA6848H is a single IC with car radio tuner for AM,
FM and Weather Band (WB) intended for microcontroller
tuning with the I2C-bus. It provides the following functions:
•AM double conversion receiver for LW, MW and SW
(31 m, 41 m and 49 m bands) with IF1 = 10.7 MHz and
IF2 = 450 kHz
•FM double conversion receiver with integrated image
rejection for IF1 and for IF2 capable of selecting US FM,
US weather, Europe FM, East Europe FM and
Japan FM bands; fully integrated dynamic selectivity at
450 kHz FM IF2; FM demodulator with dynamic
threshold extension; centre frequency alignment of IF2
selectivity via the I2C-bus
•The tuning system includes VCO, crystal oscillator and
PLL synthesizer on one chip.
3 ORDERING INFORMATION
TYPE NUMBER PACKAGE
NAME DESCRIPTION VERSION
TEA6848H LQFP80 plastic low profile quad flat package; 80 leads; body 12 ×12 ×1.4 mm SOT315-1
2004 Nov 12 4
Philips Semiconductors Product specification
New In Car Entertainment car radio tuner IC with
Precision Adjacent Channel Suppression (NICE-PACS) TEA6848H
4 QUICK REFERENCE DATA
SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT
VDDA(n) analog supply voltage 1 to 4 and 6 8 8.5 9 V
IDDA(tot) sum of analog supply
currents 1 to 4 and 6 FM mode 45 56 67 mA
AM mode 40 50 60 mA
VDDA5 analog supply voltage 5 4.75 5 5.25 V
IDDA5 analog supply current 5 FM mode −7.4 −mA
AM mode −11 −mA
VDDD digital supply voltage 4.75 5 5.25 V
IDDD digital supply current FM mode 21 26 31 mA
AM mode 22 27 32 mA
fAM(ant) AM input frequency LW 0.144 −0.288 MHz
MW 0.522 −1.710 MHz
SW 5.730 −9.99 MHz
fFM(ant) FM input frequency 65 −108 MHz
fFM(WB)(ant) FM weather band input frequency 162.4 −162.55 MHz
Tamb ambient temperature −40 −+85 °C
AM overall system parameters; see Figs 10 and 11
(S+N)/N signal plus noise-to-noise ratio m = 0.3; BAF = 2.15 kHz −59 −dB
THD total harmonic distortion m = 0.8; fmod = 1 kHz −0.3 −%
Vsens(rms) sensitivity (RMS value) m = 0.3; fmod = 1 kHz;
(S+N)/N = 26 dB;
with European dummy
aerial 15 pF/60 pF;
BAF = 2.15 kHz
−45 −µV
FM overall system parameters; see Figs 10 and 11
(S+N)/N signal plus noise-to-noise ratio ∆f = 22.5 kHz;
de-emphasis = 50 µs;
BAF = 300 Hz to 15 kHz
−63 −dB
THD total harmonic distortion ∆f = 75 kHz;
with 2 ×SFE10.7MS3 −0.35 −%
Vsens(rms) sensitivity (RMS value) ∆f = 22.5 kHz;
fmod = 1 kHz;
(S+N)/N = 26 dB;
de-emphasis = 50 µs;
BAF = 300 Hz to 15 kHz;
with 75 Ω dummy antenna
−1.4 2 µV
2004 Nov 12 5
Philips Semiconductors Product specification
New In Car Entertainment car radio tuner IC with
Precision Adjacent Channel Suppression (NICE-PACS) TEA6848H
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5 BLOCK DIAGRAM
handbook, full pagewidth
DAA
RDS
UPDATE
CRYSTAL
OSCILLATOR
POWER
SUPPLY
VCO
AM
MIXER 1
AM
MIXER 2
AM
AGC
90°
FM
I/Q MIXER 1
FM
AGC
TUNING SYSTEM
AM NOISE
DETECTOR
PEAK/
AVERAGE
BLANK
PULSE LEVEL
DAA
÷10/
÷20
÷1/ ÷2/
÷3
90°
IF
COUNT
TEA6848H
AM
DEMOD
FM
MIXER 2
÷2
MUX
IF
FILTER FM
DEMOD
STABI
BUFFER
BANDWIDTH
CONTROL
x1/ x15
AMPLIFIER
MPXOUT
19 18 15 14 13 12 11 10 9 87654
321
20
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
DAAIN
DAATD
DAAOUT
TKEYEDAGC
TFMAGC
IFMAGC
WBFLAG
FMMIXIN2
FMMIXIN1
Vref(MIX)
i.c.
RFGND
IAMAGC
VAMCAS
VAMCASFB
AMMIX1IN
AMMIX1DEC
SWFLAG
VDDA2
MIX1OUT2
MIX1OUT1 FMLIMDCFDB1AMIF2DECAMNBHOLD
IFAMPOUT
IFCDAATEST
FMMIX2DEC
COFFSET
FMMIX2IN
IF1GND
AMIF2IN
VDDA1
IFAMPIN
IFAMPDEC
IF2FILQ
IF2FILI FMLIMDCFDB2IREFFMIF2
THFAMAGC
TAFAMAGC
41 42 43 44 45 46 47 48 49 50 5251 53 54 55 56 57 58 59 60
MODDET
VDDA5
FMMPXRDSMPXAMAFIF2
TRDSMUTE
AFHOLD
AFSAMPLE
MPXDCFDB
VDDA4
OSCTNK
OSCFDB
VCOGND
DGND
VDDD
FREF
VDDA3
CPOUT
Vtune
i.c.
61 VDDA6
IFBWFLAG
SDA
SCL
VIFBW
IF2GND
CINT
MODETOUT
TACD
Vlevel(AMFM)
XTAL1
XTALGND
XTAL2
Vlevel(ACD)
ACDTHRES
IREF
AMMIX2OUT1
AMMIX2OUT2
CAGC
Vref(lim)
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
AM
LEVEL
LEVEL
WB
LEVEL
20.5 MHz
FM AM
WB/JAPAN/OIRT
21 17 16
ANTENNA
AM STEREO MUTE
RDS
I2C-bus
I2C-bus
I2C-bus
I2C-bus
I2C-bus
I2C-bus
I2C-BUS
I2C-
bus
MHC436
×
×
×
×
Fig.1 Block diagram.
2004 Nov 12 6
Philips Semiconductors Product specification
New In Car Entertainment car radio tuner IC with
Precision Adjacent Channel Suppression (NICE-PACS) TEA6848H
6 PINNING
SYMBOL PIN DESCRIPTION
FMLIMDCFDB1 1 decoupling in-phase FM limiter
FMLIMDCFDB2 2 decoupling quadrature phase FM limiter
AMIF2DEC 3 decoupling for AM IF2 input
IREFFMIF2 4 reference current for FM IF2
AMNBHOLD 5 AM noise blanker threshold
AMIF2IN 6 AM IF2 input (450 kHz) for demodulator AGC and AM level detector
IF1GND 7 AM IF1 ground
FMMIX2IN 8 FM mixer 2 input
COFFSET 9 DC feedback for offset compensation RDS mute
FMMIX2DEC 10 FM mixer 2 decoupling
IFCDAATEST 11 test pin for IF centre DAA
IFAMPOUT 12 IF amplifier output (10.7 MHz)
VDDA1 13 analog supply voltage 1 (8.5 V) for FM IF amplifier
IFAMPIN 14 FM IF amplifier and AM mixer 2 input (10.7 MHz)
IFAMPDEC 15 FM IF amplifier and AM mixer 2 decoupling
IF2FILQ 16 test output quadrature phase FM IF2 filter
IF2FILI 17 test output in-phase FM IF2 filter
MIX1OUT1 18 FM mixer and AM mixer 1 IF output 1 (10.7 MHz)
MIX1OUT2 19 FM mixer and AM mixer 1 IF output 2 (10.7 MHz)
VDDA2 20 analog supply voltage 2 (8.5 V) for FM and AM RF
SWFLAG 21 output software programmable flag
AMMIX1DEC 22 AM mixer 1 decoupling
AMMIX1IN 23 AM mixer 1 input
VAMCASFB 24 feedback for cascode AM AGC
VAMCAS 25 cascode AM AGC
TAFAMAGC 26 AF time constant of AM front-end AGC
THFAMAGC 27 HF time constant of AM front-end AGC
IAMAGC 28 PIN diode drive current output of AM front-end AGC
Vref(MIX) 29 reference voltage for FM RF mixer
FMMIXIN1 30 FM RF mixer input 1
RFGND 31 RF ground
i.c. 32 internal connection
FMMIXIN2 33 FM RF mixer input 2
WBFLAG 34 buffered weather band flag output
IFMAGC 35 PIN diode drive current output of FM front-end AGC
TFMAGC 36 time constant of FM front-end AGC
TKEYEDAGC 37 time constant of keyed FM front-end AGC
DAAOUT 38 output of digital auto alignment circuit for antenna tank circuit
DAATD 39 temperature compensation diode for digital auto alignment circuit for antenna tank circuit
DAAIN 40 input of digital auto alignment circuit for antenna tank circuit
2004 Nov 12 7
Philips Semiconductors Product specification
New In Car Entertainment car radio tuner IC with
Precision Adjacent Channel Suppression (NICE-PACS) TEA6848H
i.c. 41 internal connection
Vtune 42 tuning voltage
CPOUT 43 charge pump output
VDDA3 44 analog supply voltage 3 (8.5 V) for tuning PLL
FREF 45 reference frequency output for signal processor IC
VDDD 46 digital supply voltage (5 V)
DGND 47 digital ground
VCOGND 48 VCO ground
OSCFDB 49 VCO feedback
OSCTNK 50 VCO tank circuit
VDDA4 51 analog supply voltage 4 (8.5 V) for VCO
MPXDCFDB 52 DC feedback for FM MPX signal path
AFSAMPLE 53 AF sample flag output for car audio signal processor IC
AFHOLD 54 AF hold flag output for car audio signal processor IC
TRDSMUTE 55 time constant for RDS update mute
AMAFIF2 56 AM demodulator AF output or IF2 output for AM stereo (multiplexed by I2C-bus)
RDSMPX 57 MPX output for RDS decoder and signal processor (not muted)
FMMPX 58 FM demodulator MPX output
VDDA5 59 analog supply voltage 5 (5 V) for on-chip power supply
MODDET 60 modulation detector input
VDDA6 61 analog supply voltage 6 (8.5 V) for on-chip power supply
IFBWFLAG 62 FM IF2 bandwidth flag output
SDA 63 I2C-bus data line input and output
SCL 64 I2C-bus clock line input
VIFBW 65 monitor voltage for FM IF2 bandwidth
IF2GND 66 AM IF2 ground
CINT 67 demodulator loop filter
MODETOUT 68 modulation detector output
TACD 69 adjacent channel detector time constant
Vlevel(AMFM) 70 level voltage output for AM and FM
XTAL1 71 crystal oscillator 1
XTALGND 72 crystal oscillator ground
XTAL2 73 crystal oscillator 2
Vlevel(ACD) 74 level voltage output for adjacent channel detector
ACDTHRES 75 adjacent channel detector threshold
IREF 76 reference current for power supply
AMMIX2OUT1 77 AM mixer 2 output 1 (450 kHz)
AMMIX2OUT2 78 AM mixer 2 output 2 (450 kHz)
CAGC 79 AM IFAGC capacitor/offset detector alignment (FM)
Vref(lim) 80 limiter reference voltage
SYMBOL PIN DESCRIPTION
2004 Nov 12 8
Philips Semiconductors Product specification
New In Car Entertainment car radio tuner IC with
Precision Adjacent Channel Suppression (NICE-PACS) TEA6848H
handbook, full pagewidth
TEA6848H
MHC437
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
60
59
58
57
56
55
54
53
52
51
50
49
48
47
46
45
44
43
42
41
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
80
79
78
77
76
75
74
73
72
71
70
69
68
67
66
65
64
63
62
61
Vref(lim)
CAGC
AMMIX2OUT2
AMMIX2OUT1
IREF
ACDTHRES
Vlevel(ACD)
XTAL2
XTALGND
XTAL1
Vlevel(AMFM)
TACD
MODETOUT
CINT
IF2GND
VIFBW
SCL
SDA
IFBWFLAG
VDDA6
SWFLAG
AMMIX1DEC
AMMIX1IN
VAMCASFB
VAMCAS
TAFAMAGC
THFAMAGC
IAMAGC
Vref(MIX)
FMMIXIN1
RFGND
i.c.
FMMIXIN2
WBFLAG
IFMAGC
TFMAGC
TKEYEDAGC
DAAOUT
DAATD
DAAIN
FMLIMDCFDB1
FMLIMDCFDB2
AMIF2DEC
IREFFMIF2
AMNBHOLD
AMIF2IN
IF1GND
FMMIX2IN
COFFSET
FMMIX2DEC
IFCDAATEST
IFAMPOUT
VDDA1
IFAMPIN
IFAMPDEC
IF2FILQ
IF2FILI
MIX1OUT1
MIX1OUT2
VDDA2
MODDET
VDDA5
FMMPX
RDSMPX
AMAFIF2
TRDSMUTE
AFHOLD
AFSAMPLE
MPXDCFDB
VDDA4
OSCTNK
OSCFDB
VCOGND
DGND
VDDD
FREF
VDDA3
CPOUT
Vtune
i.c.
Fig.2 Pin configuration.
2004 Nov 12 9
Philips Semiconductors Product specification
New In Car Entertainment car radio tuner IC with
Precision Adjacent Channel Suppression (NICE-PACS) TEA6848H
7 FUNCTIONAL DESCRIPTION
7.1 Oscillators
7.1.1 VCO
Thevaractor tunedVCOprovidesthe localoscillatorsignal
for both FM and AM mixer 1. It has a frequency range of
162.9 to 248.2 MHz.
7.1.2 PLL
Fast synthesizer PLL tuning system with local control for
inaudible RDS updating.
7.1.3 CRYSTAL OSCILLATOR
The crystal oscillator provides a 20.5 MHz signal that is
used for:
•Reference frequency for frequency synthesizer PLL
•Local oscillator for AM mixer 2 and FM mixer 2
•Reference frequency for the IF counter
•Timing signal for the RDS update algorithm
•Referencefrequency(75.368 kHz)fortheTEA688x(car
audio signal processor - CASP) or TEF689x (car radio
integrated signal processor - CRISP).
7.2 DAA
To reduce the number of manual alignments in production
the following I2C-bus controlled Digital Auto Alignment
(DAA) functions are included:
•FM RF DAA
– 7-bit DAA circuitry for the conversion of the VCO
tuning voltage to a controlled alignment voltage for
the FM antenna tank circuit
•FM and AM level DAA
– Level DAA circuitry for alignment of slope (3-bit) and
starting point (5-bit) of the level curve
•IF2 centre DAA
– Centre frequency alignment (7-bit) of integrated
FM IF2 dynamic selectivity.
7.3 FM signal channel
7.3.1 FM MIXER 1
FM quadraturemixer converts FM RF(65 to 108 MHzand
weather band) to IF of 10.7 MHz. The FM mixer provides
inherent image rejection and high RF sensitivity.
It is capable of tuning the US FM, US weather,
Europe FM, Japan FM and East Europe FM bands:
•US FM = 87.9 to 107.9 MHz
•US weather FM = 162.4 to 162.55 MHz
•Europe FM = 87.5 to 108 MHz
•Japan FM = 76 to 91 MHz
•East Europe FM = 65 to 74 MHz.
7.3.2 BUFFER OUTPUT FOR WEATHER BAND FLAG
(PIN WBFLAG)
The buffer output on pin WBFLAG is HIGH for weather
band mode.
7.3.3 FM KEYED AGC
The AGC threshold is programmable and the keyed AGC
function is switchable via the I2C-bus. AGC detection
occurs at the input of the first FM mixer. If the keyed AGC
function is activated, the AGC is keyed only by the narrow
band level. The AGC PIN diode drive can be activated via
the I2C-bus as a local function for search tuning. The AGC
sources a constant 10 mA current into the FM PIN diode in
AM mode.
7.3.4 FM IF AMPLIFIER
The FM IF amplifier provides 18 dB amplification with high
linearity over a wide dynamic range.
7.3.5 FM MIXER 2
The FM mixer 2 converts 10.7 MHz FM IF1 to 450 kHz
FM IF2 in I and Q phase to achieve image rejection in the
demodulator.
2004 Nov 12 10
Philips Semiconductors Product specification
New In Car Entertainment car radio tuner IC with
Precision Adjacent Channel Suppression (NICE-PACS) TEA6848H
7.3.6 FM IF2 DYNAMIC SELECTIVITY
The IF bandwidth of the FM IF2 is automatically adjusted
depending on modulation and reception conditions. The
centre frequency of the selectivity is adjusted by a 7-bit
instruction via the I2C-bus. The dynamic selectivity mode
and three fixed bandwidths (60, 90 and 130 kHz) can be
selected via the I2C-bus. The IF2 bandwidth is set to
13 kHz in weather band mode.
7.3.7 FM QUADRATURE DEMODULATOR
The FM quadrature demodulator is adjustment free.
7.3.8 ADJACENT CHANNEL DETECTOR AND THRESHOLD
EXTENSION
In the event of breakthrough of a strong neighbouring
transmitter, the IF2 bandwidth is reduced dynamically.
At lowRF inputvoltages and low modulation levels the IF2
bandwidth is reduced to achieve improved sensitivity by
demodulator threshold extension.
7.3.9 BANDWIDTH CONTROL ‘ACTIVE’FLAG
(PIN IFBWFLAG)
Flag output IBFW = 1 from pin IFBWFLAG indicates that
the IF2 bandwidth is reduced.
7.3.10 BANDWIDTH CONTROL MONITOR VOLTAGE
(PIN VIFBW)
Theactualbandwidthisindicated by a voltage atpin VIFBW
that is proportional, not linear, to the IF bandwidth.
7.4 AM signal channel
7.4.1 AM TUNER INCLUDING MIXER 1AND MIXER 2
The AM tuner is realized in a double conversion technique
and is capable of selecting LW, MW and SW bands.
AM mixer 1 converts AM RF to IF1 of 10.7 MHz, while
AM mixer 2 converts IF1 of 10.7 MHz to IF2 of 450 kHz:
•LW = 144 to 288 kHz
•MW = 530 to 1710 kHz (US AM band)
•SW = 5.73 to 9.99 MHz (including the 31 m, 41 m and
49 m bands).
7.4.2 AM RF AGC
The AM wideband AGC in front of the first AM mixer is
realized first by a cascaded NPN transistor, which controls
the transconductance of the RF amplifier JFET with 10 dB
of AGC range. Second, an AM PIN diode stage with
antenna type and frequency dependent AGC range is
available. The minimum JFET drain source voltage is
controlled by a DC feedback loop (pin VAMCASFB) in
order to limit the cascode AGC range to 10 dB. If the
cascode AGC is not required, a simple RF AGC loop is
possible by using only a PIN diode. In this event
pins VAMCASFB and VAMCAS have to be open-circuit.
In FM mode, the cascade switches off the JFET bias
current to reduce total power consumption. The PIN diode
is biased by 1 mA in FM mode.
The AGC detection points for AM AGC are at the first AM
mixer input (threshold programmable via the I2C-bus) and
the IF2 AGC input (fixed threshold).
7.4.3 AM DETECTOR
The AM output provides either a detected AM AF or the
corresponding AM IF2 signal. The IF2 signal can be used
for AM stereo decoder processing. Soft mute function is
controlled by the I2C-bus in AM mono mode.
7.4.4 AM NOISE BLANKER
The detection point for the AM noise blanker is the output
stage of AM mixer 1, while blanking is realized at the
output of the mixer 2.
Trigger sensitivity can be modified by adding an external
resistor at pin AMNBHOLD.
7.5 FM and AM level detector
FM and AM level detectors provide the temperature
compensated output voltage. The starting points and
slopes of the level detector outputs are programmable via
the I2C-bus.
2004 Nov 12 11
Philips Semiconductors Product specification
New In Car Entertainment car radio tuner IC with
Precision Adjacent Channel Suppression (NICE-PACS) TEA6848H
7.6 IF2 filter gain alignment
The 4-bit filter gain alignment reduces the change in
IF filter gain spread when the bandwidth is changed in
dynamic mode from 155 kHz (maximum) to 25 kHz
(minimum).
A frequency has to be chosen in the middle of
European/US FM band, Japan band or OIRT band (for
East Europe) and the IC has to be set into dynamic
bandwidth mode (IF2 bandwidth is 155 kHz).
Setting and clearing the FMBW bit continuously allows the
adjustment of the gain alignment to minimum change in
AM/FM DC level.
7.7 Frequency offset detector/alignment
A very strong undesired neighbouring signal causes offset
in the demodulator in case of weak desired input signal.
The frequency offset detector reduces the bandwidth of
the IF2 filter when the detected offset in the demodulator
is too large.
There are four bits available for frequency offset detector
alignment. Every band has to be aligned separately.
Tuning has to be set to middle of the band, input signal
unmodulated, bit IFBW = 1 (alignment voltage will be
given to pin IFBWFLAG). The DC voltage at
pin IFBWFLAG has to be aligned to the minimum value.
8 LIMITING VALUES
In accordance with the Absolute Maximum Rating System (IEC 60134).
Notes
1. To avoid damage and wrong operation it is necessary to keep all 8.5 V supply voltages at a higher level than any 5 V
supply voltage. This is also necessary during power-on and power-down sequences. Precautions have to be
provided in such a way that interference cannot pull down the 8.5 V supply below the 5 V supply.
2. Machine model (R = 0 Ω, C = 200 pF).
3. Human body model (R = 1.5 kΩ, C = 100 pF).
9 THERMAL CHARACTERISTICS
SYMBOL PARAMETER CONDITIONS MIN. MAX. UNIT
VDDA1 analog supply voltage 1 for FM IF amplifier −0.3 +10 V
VDDA2 analog supply voltage 2 for FM and AM RF −0.3 +10 V
VDDA3 analog supply voltage 3 for tuning PLL −0.3 +10 V
VDDA4 analog supply voltage 4 for voltage controlled
oscillator −0.3 +10 V
VDDA5 analog supply voltage 5 for on-chip power supply −0.3 +6.5 V
VDDA6 analog supply voltage 6 for on-chip power supply −0.3 +10 V
VDDD digital supply voltage −0.3 +6.5 V
∆VDD8.5-DD5 difference between any 8.5 V supply voltage and
any 5 V supply voltage note 1 −0.3 −V
Tstg storage temperature −55 +150 °C
Tamb ambient temperature −40 +85 °C
Ves electrostatic handling voltage note 2 −200 +200 V
note 3 −2000 +2000 V
SYMBOL PARAMETER CONDITIONS VALUE UNIT
Rth(j-a) thermal resistance from junction to ambient in free air 54 K/W
Rth(j-c) thermal resistance from junction to case 9 K/W
2004 Nov 12 12
Philips Semiconductors Product specification
New In Car Entertainment car radio tuner IC with
Precision Adjacent Channel Suppression (NICE-PACS) TEA6848H
10 DC CHARACTERISTICS
VDDA(n) = 8.5 V; VDDA5 =5V; V
DDD =5V; T
amb =25°C; tested in the circuit of Figs 10 and 11; unless otherwise
specified.
SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT
Supply voltage
VDDA(n) analog supply voltages 1 to 4 and 6 8 8.5 9 V
VDDA5 analog supply voltage 5 4.75 5 5.25 V
VDDD digital supply voltage 4.75 5 5.25 V
Supply current in FM mode
IDDD digital supply current Europe/US band 21 26 31 mA
Japan/East Europe band 26.5 33 39.5 mA
IDDA1 analog supply current 1 for FM IF
amplifier 5.5 7.3 8.8 mA
IDDA2 analog supply current 2 for FM RF 4.2 5.2 6.2 mA
IDDA3 analog supply current 3 for tuning PLL 3.2 4 4.8 mA
IDDA4 analog supply current 4 for VCO 5.2 6.5 7.8 mA
IDDA5 analog supply current 5 for on-chip
power supply Europe/US band −3.8 −mA
Japan/East Europe band −7.4 −mA
IDDA6 analog supply current 6 for on-chip
power supply 21.5 27 32.5 mA
IMIX1OUT1 bias current of FM mixer output 1 4.8 6 7.2 mA
IMIX1OUT2 bias current of FM mixer output 2 4.8 6 7.2 mA
Supply current in AM mode
IDDD digital supply current 22 27 32 mA
IDDA1 analog supply current 1 for
AM mixer 2 100 120 140 µA
IDDA2 analog supply current 2 for RF 1.4 1.8 2.2 mA
IDDA3 analog supply current 3 for tuning PLL 1.8 2.2 2.6 mA
IDDA4 analog supply current 4 for VCO 5 6.5 8 mA
IDDA5 analog supply current 5 for on-chip
power supply −11 −mA
IDDA6 analog supply current 6 for on-chip
power supply 14 17.5 21 mA
IMIX1OUT1 bias current of AM mixer 1 output 1 4.8 6 7.2 mA
IMIX1OUT2 bias current of AM mixer 1 output 2 4.8 6 7.2 mA
IAMMIX2OUT1 bias current of AM mixer 2 output 1 3.6 4.5 5.4 mA
IAMMIX2OUT2 bias current of AM mixer 2 output 2 3.6 4.5 5.4 mA
On-chip power supply reference current generator: pin IREF
Vo(ref) output reference voltage RIREF = 120 kΩ4 4.25 4.5 V
Rooutput resistance RIREF = 120 kΩ−10 −kΩ
Io(max) maximum output current RIREF = 120 kΩ−100 −+100 nA
2004 Nov 12 13
Philips Semiconductors Product specification
New In Car Entertainment car radio tuner IC with
Precision Adjacent Channel Suppression (NICE-PACS) TEA6848H
11 AC CHARACTERISTICS
VDDA(n) =V
MIX1OUT1 =V
MIX1OUT2 =V
AMMIX2OUT1 =V
AMMIX2OUT2 = 8.5 V; VDDD =V
DDA5 =5V;T
amb =25°C; tested in the
circuit of Figs 10 and 11; all AC values are given in RMS; unless otherwise specified.
SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT
Voltage controlled oscillator
fosc oscillator frequency 162.9 −248.2 MHz
C/N carrier-to-noise ratio fosc = 200 MHz; ∆f = 10 kHz −97 −
RR ripple rejection fripple = 100 Hz;
VDDA4(ripple) = 100 mV (RMS);
fosc = 200 MHz
92 99 −dB
Crystal oscillator
fxtal crystal frequency −20.5 −MHz
C/N carrier-to-noise ratio fxtal = 20.5 MHz; ∆f = 10 kHz −112 −
CIRCUIT INPUTS:PINS XTAL1, XTALGND AND XTAL2
Vo(osc)(rms) oscillator output voltage
(RMS value) note 1 80 100 160 mV
VXTAL1, VXTAL2 DC bias voltage 1.7 2.1 2.5 V
Rireal part of input
impedance VXTAL1 −VXTAL2 = 1 mV; note 1 −250 −−Ω
Ciinput capacitance note 1 8 10 12 pF
Synthesizer
PROGRAMMABLE DIVIDER
Nprog programmable divider ratio 512 −32767
∆Nstep programmable divider step
size −1−
CHARGE PUMP:PIN CPOUT
Isink(cp1)l low charge pump 1 sink
current 0.4 V < VCPOUT < 7.6 V;
data byte 3: bit 0 = 0, bit1=1,
bit 2 = 1 for FM weather band;
fVCO >f
ref ×divider ratio
−300 −µA
Isource(cp1)l low charge pump 1 source
current 0.4 V < VCPOUT < 7.6 V;
data byte 3: bit 0 = 0, bit1=1,
bit 2 = 1 for FM weather band;
fVCO <f
ref ×divider ratio
−−300 −µA
Isink(cp1)h high charge pump 1 sink
current 0.4 V < VCPOUT < 7.6 V;
data byte 3: bit 0 = 1, bit1=1,
bit 2 = 1; AM stereo mode;
VCO divider = 10 (LW and MW);
fVCO >f
ref ×divider ratio
−1−mA
dBc
Hz
------------
fosc
∆
fosc
------------
dBc
Hz
------------
2004 Nov 12 14
Philips Semiconductors Product specification
New In Car Entertainment car radio tuner IC with
Precision Adjacent Channel Suppression (NICE-PACS) TEA6848H
Isource(cp1)h highchargepump 1 source
current 0.4 V < VCPOUT < 7.6 V;
data byte 3: bit 0 = 1, bit1=1,
bit 2 = 1; AM stereo mode;
VCO divider = 10 (LW and MW);
fVCO <f
ref ×divider ratio
−−1−mA
Isink(cp2) charge pump 2 sink current 0.3 V < VCPOUT < 7.1 V;
data byte 3: bit 0 = 0, bit1=0,
bit 2 = 0; FM standard mode;
fVCO >f
ref ×divider ratio
−130 −µA
Isource(cp2) charge pump 2 source
current 0.3 V < VCPOUT < 7.1 V;
data byte 3: bit 0 = 0, bit1=0,
bit 2 = 0; FM standard mode;
fVCO <f
ref ×divider ratio
−−130 −µA
CHARGE PUMP:PIN Vtune
Isink(cp3) charge pump 3 sink current 0.4 V < Vtune < 7.6 V;
data byte 3: bit 0 = 0, bit1=0,
bit 2 = 0; FM standard mode;
fVCO >f
ref ×divider ratio
−3−mA
Isource(cp3) charge pump 3 source
current 0.4 V < Vtune < 7.6 V;
data byte 3: bit 0 = 0, bit1=0,
bit 2 = 0; FM standard mode;
fVCO <f
ref ×divider ratio
−−3−mA
Antenna Digital Auto Alignment (DAA)
DAA INPUT:PIN DAAIN
Ibias(cp) charge pump buffer input
bias current VDAAIN = 0.4 to 8 V −10 −+10 nA
Vi(cp) charge pump buffer input
voltage 0−8.5 V
DAA OUTPUT:PIN DAAOUT; note 2
Vo(AM) DAA output voltage in
AM mode IDAAOUT < 100 µA−− 0.3 V
Vo(FM) DAA output voltage in
FM mode minimum value;
data byte 2 = 10000000;
VDAAIN = 0.5 V; VDAATD = 0.45 V
−− 0.5 V
maximum value;
data byte 2 = 11111111;
VDAAIN = 4.7 V; VDAATD = 0.45 V
8−8.5 V
VDAAIN =4V; V
DAATD = 0.45 V
data byte 2 = 10000000 −0.65 −V
data byte 2 = 11000000 3.8 4 4.2 V
VDAAIN =2V; V
DAATD = 0.45 V
data byte 2 = 11010101 2.3 2.6 2.9 V
data byte 2 = 10101010 1.2 1.4 1.6 V
SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT
2004 Nov 12 15
Philips Semiconductors Product specification
New In Car Entertainment car radio tuner IC with
Precision Adjacent Channel Suppression (NICE-PACS) TEA6848H
Vo(n) DAA output noise voltage data byte 2 = 11000000;
FM mode; VDAAIN =4V;
VDAATD = 0.45 V;
B = 300 Hz to 22 kHz
−30 100 µV
∆Vo(T) DAA output voltage
variation with temperature Tamb =−40 to +85 °C;
data byte 2 = 11000000 −8−+8 mV
∆Vo(step) DAA step accuracy n = 0 to 127; FM mode;
VDAAOUT = 0.5 to 8 V;
VDAAIN =2V; V
DAATD = 0.45 V
0.5VLSB VLSB 1.5VLSB mV
∆Vo(sink) DAA output variation
caused by sink current VDAAIN =4V; I
L=50µA−VLSB −+VLSB
∆Vo(source) DAA output variation
caused by source current VDAAIN =4V; I
L=−50 µA−VLSB −+VLSB
tst DAA output settling time VDAAOUT = 0.2 to 8.25 V;
CL= 270 pF −20 30 µs
RR ripple rejection data byte 2 = 10101011;
FM mode; VDAAIN =4V;
VDAATD = 0.45 V; fripple = 100 Hz;
VDDA3(ripple) = 100 mV (RMS)
−65 −dB
CLDAA output load
capacitance −− 270 pF
DAA TEMPERATURE COMPENSATION:PIN DAATD
Isource compensation diode
source current VDAATD = 0.2 to 1.2 V −50 −40 −30 µA
TCsource temperature coefficient of
compensation diode
source current
VDAATD = 0.2 to 1.2 V;
Tamb =−40 to +85 °C−300 −+300
IF counter (FM IF2 or AM IF2 counter)
NIF IF counter length for
AM and FM −8−bit
PINS FMMIX2IN AND FMMIX2DEC; note 3
Vsens(rms) sensitivity voltage
(RMS value) FM mode −30 100 µV
N counter result (decimal) period = 2 ms;
VFMMIX2IN-FMMIX2DEC = 100 µV
prescaler ratio = 10 −90 −
prescaler ratio = 40 −22 −
period = 20 ms;
VFMMIX2IN-FMMIX2DEC = 100 µV
prescaler ratio = 10 −132 −
prescaler ratio = 40 −225 −
SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT
VDAAOUT
VDDA3
-----------------------
10 6–
K
-----------
2004 Nov 12 16
Philips Semiconductors Product specification
New In Car Entertainment car radio tuner IC with
Precision Adjacent Channel Suppression (NICE-PACS) TEA6848H
PINS AMIF2IN AND AMIF2DEC; note 4
Vsens(rms) sensitivity voltage
(RMS value) AM mode; m = 0 −30 70 µV
N counter result (decimal) period = 2 ms;
VAMIF2IN-AMIF2DEC = 200 µV−132 −
period = 20 ms;
VAMIF2IN-AMIF2DEC = 200 µV−40 −
Reference frequency for car signal processor IC TEA688x and TEF689x; note 5
REFERENCE FREQUENCY DIVIDER
Nref crystal oscillator divider
ratio −272 −
fref reference frequency fxtal = 20.5 MHz −75.368 −kHz
VOLTAGE GENERATOR:PIN FREF
Vo(p-p) AC output voltage
(peak-to-peak value) not loaded 60 90 −mV
VODC output voltage 3.2 3.4 3.7 V
Rooutput resistance −− 50 kΩ
RL(min) minimum load resistance
for first I2C-bus address 1−−MΩ
Weather band flag: pin WBFLAG
Isource(max) maximum source current −−5−mA
Ri(shunt) internal shunt resistance to
ground −50 −kΩ
Vo(max) maximum output voltage
for FM mode measured with respect to
pin RFGND 0−0.2 V
Vooutput voltage for weather
band mode measured with respect to
pin RFGND 4−5V
AM signal channel
AM RF AGC STAGE (PIN DIODE DRIVE)
Vi(p) RF input voltage for
wideband AGC start level
(peak value)
m = 0.3; data byte 4: bit5=0,
bit 6 = 0 −150 −mV
m = 0.3; data byte 4: bit5=1,
bit 6 = 0 −275 −mV
m = 0.3; data byte 4: bit5=0,
bit 6 = 1 −400 −mV
m = 0.3; data byte 4: bit5=1,
bit 6 = 1 −525 −mV
AM IF AGC STAGE INPUT:PIN AMIF2IN
Vi(p) IF2 input voltage
(peak value) AGC start level 0.20 0.27 0.35 V
SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT
2004 Nov 12 17
Philips Semiconductors Product specification
New In Car Entertainment car radio tuner IC with
Precision Adjacent Channel Suppression (NICE-PACS) TEA6848H
AM RF AGC CURRENT GENERATOR OUTPUT:PIN IAMAGC
Isink(max) maximum AGC sink
current Vo=2.8V 1115 19mA
Isink AGC sink current FM mode 1 −−mA
Rooutput resistance Io=1µA 0.5 −−MΩ
CoAM AGC current generator
output capacitance −57pF
RF CASCODE AGC
Icas(off) AM cascode off current FM mode −− 100 nA
Pin VAMCASFB
Vcas(FB) cascode feedback voltage VAMMIX1IN-AMMIX1DEC above
threshold; minimum gain −0.26 −V
Icas(FB) cascode feedback sense
current 0−1µA
Pin VAMCAS
Vcas cascode voltage VAMMIX1IN-AMMIX1DEC below
threshold; maximum gain −5−V
Icas cascode transistor base
current capability 100 −−µA
AM MIXER 1 (IF1 = 10.7 MHZ)
Mixer inputs: pins AMMIX1DEC and AMMIX1IN
Riinput resistance note 6 15 25 40 kΩ
Ciinput capacitance note 6 2.5 5 7.5 pF
VIDC input voltage 2.3 2.7 3.1 V
Vi(max) maximum input voltage 1 dB compression point of
VMIX1OUT1-MIX1OUT2; m = 0 500 −−mV
Mixer outputs: pins MIX1OUT1 and MIX1OUT2
Rooutput resistance note 7 100 −−kΩ
Cooutput capacitance note 7 −47pF
Vo(max)(p-p) maximum output voltage
(peak-to-peak value) 12 15 −V
Ibias mixer bias current AM mode 4.8 6 7.2 mA
Mixer
gm(conv) conversion
transconductance 2.0 2.55 3.2
SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT
IMIX1OUT
VMIX1IN
---------------------
mA
V
---------
2004 Nov 12 18
Philips Semiconductors Product specification
New In Car Entertainment car radio tuner IC with
Precision Adjacent Channel Suppression (NICE-PACS) TEA6848H
gm(conv)(T) conversion
transconductance variation
with temperature
−−9×10−4−K−1
IP3 3rd-order intermodulation RL= 2.6 kΩ (AC load between
output pins); ∆f = 300 kHz 135 138 −dBµV
IP2 2nd-order intermodulation RL= 2.6 kΩ (AC load between
output pins) −170 −dBµV
Vi(n)(eq) equivalent input noise
voltage band limited noise;
Rgen = 750 Ω; RL= 2.6 kΩ
(AC load between output pins)
−5.8 8
F noise figure of AM mixer 1 −4.5 7.1 dB
AM MIXER 2 (IF2 = 450 kHz)
Mixer inputs: pins IFAMPIN and IFAMPDEC
Riinput resistance note 8 −330 −Ω
Ciinput capacitance note 8 −57pF
VIDC voltage 2.4 2.7 3 V
Vi(max)(p) maximum input voltage
(peak value) 1 dB compression point of
VAMMIX2OUT1-AMMIX2OUT2
1.1 1.4 −V
Mixer outputs: pins AMMIX2OUT1 and AMMIX2OUT2
Rooutput resistance note 9 50 −−kΩ
Cooutput capacitance note 9 −47pF
Vo(max)(p-p) maximum output voltage
(peak-to-peak value) VDDA6 = 8.5 V 12 15 −V
Ibias mixer bias current AM mode 3.6 4.5 5.4 mA
Mixer
gm(conv) conversion
transconductance 1.3 1.6 1.9
gm(conv)(T) conversion
transconductance variation
with temperature
−−9×10−4−K−1
IP3 3rd-order intermodulation RL= 1.5 kΩ (AC load between
output pins); ∆f = 300 kHz 134 137 −dBµV
IP2 2nd-order intermodulation RL= 1.5 kΩ (AC load between
output pins) −170 −dBµV
Vi(n)(eq) equivalent input noise
voltage Rgen = 330 Ω; RL= 1.5 kΩ
(AC load between output pins) −15 22
SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT
gm(conv)
∆
gm(conv) T∆×
---------------------------------
nV
Hz
------------
IAMMIX2OUT
VIFAMPIN
----------------------------
mA
V
---------
gm(conv)
∆
gm(conv) T∆×
---------------------------------
nV
Hz
------------
2004 Nov 12 19
Philips Semiconductors Product specification
New In Car Entertainment car radio tuner IC with
Precision Adjacent Channel Suppression (NICE-PACS) TEA6848H
F noise figure of AM mixer 2 −16 19.5 dB
ILmixer leakage current FM mode −− 10 µA
AM IF2 AGC STAGE:PINS AMIF2IN AND AMIF2DEC; note 4
Viinput voltage audio attenuation α=−10 dB
data byte 4: bit 4 = 1; mute on −25 40 µV
data byte 4: bit 4 = 0; mute off −610µV
VAGC(start) AGC start voltage input carrier voltage −14 30 µV
VAGC(stop) AGC stop voltage maximum input peak voltage 1 −−V
VAGC(ctrl) AGC control voltage Vi= 1 mV 4.1 4.3 4.7 V
∆AGC AGC range between start and stop of AGC −89 −dB
Riinput resistance 1.8 2 2.2 kΩ
Ciinput capacitance −10 15 pF
AM DETECTOR
Vsens(rms) sensitivity voltage
(RMS value) m = 0.3; fmod = 400 Hz;
BAF = 2.15 kHz; Rgen =2kΩ;
note 4
(S+N)/N = 26 dB −45 65 µV
(S+N)/N = 46 dB −600 900 µV
(S+N)/N maximum signal plus
noise-to-noise ratio m = 0.3; fmod = 400 Hz;
BAF = 2.15 kHz; Rgen =2kΩ−60 −dB
THD total harmonic distortion BAF = 2.15 kHz; CAGC =10µF;
VAMIF2IN = 100 µV to 250 mV
(RMS)
m = 0.8; fmod = 400 Hz −0.5 1 %
m = 0.8; fmod = 100 Hz −1.25 2.5 %
tsw FM to AM switching time VAMIF2IN = 100 µV; CAGC =10µF−1000 1500 ms
tst AM AGC settling time VAMIF2IN = 100 µV to 100 mV −400 600 ms
VAMIF2IN = 100 mV to 100 µV−600 900 ms
Output: pin AMAFIF2
Vo(rms) AM IF2 output voltage
(RMS value) AM stereo; m = 0; data byte 3:
bit 0 = 1, bit 1 = 1, bit 2 = 1
minimum at VAMIF2IN =14µV 1.5 3 4.5 mV
maximum at VAMIF2IN = 5 mV 130 180 230 mV
AM mono; m = 0.3; data byte 3:
bit 0 = 1, bit 1 = 0, bit 2 = 1;
fmod = 400 Hz;
VAMIF2IN = 100 µV to 500 mV
(RMS)
200 250 300 mV
Rooutput resistance data byte 3: bit 0 = 1, bit1=1,
bit 2 = 1; AM stereo −− 500 Ω
data byte 3: bit 0 = 1, bit1=0,
bit 2 = 1; AM mono −− 500 Ω
SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT
2004 Nov 12 20
Philips Semiconductors Product specification
New In Car Entertainment car radio tuner IC with
Precision Adjacent Channel Suppression (NICE-PACS) TEA6848H
Cooutput capacitance data byte 3: bit 0 = 1, bit1=0,
bit 2 = 1 −57pF
ZLload impedance data byte 3: bit 0 = 1, bit1=0,
bit 2 = 1; AM mono 100 −−kΩ
data byte 3: bit 0 = 1, bit1=1,
bit 2 = 1; AM stereo 10 −−kΩ
RR ripple rejection VDDA5(ripple) = 100 mV (RMS);
fripple = 100 Hz −24 −dB
VDDA6(ripple) = 100 mV (RMS);
fripple = 100 Hz −26 −dB
AM IF2 LEVEL DETECTOR OUTPUT:PIN Vlevel(AMFM); see Fig.4
Vlevel(AMFM) DC output voltage VAMIF2IN =10µVto1V 0 −7V
VAMIF2IN <1µV; standard setting
of level DAA 0.1 0.5 0.9 V
VAMIF2IN = 1.4 mV; standard
setting of level DAA 1.6 2.2 2.8 V
∆Vlevel(AMFM) step size for adjustment of
level starting point VAMIF2IN = 0 V; standard setting
of level slope 30 40 50 mV
Vlevel(slope) slope of level voltage VAMIF2IN = 140 µV to 140 mV;
standard setting of level slope 650 800 950
∆Vstep step size for adjustment of
level slope VAMIF2IN = 1.4 mV 45 60 75
Blevel(AMFM) bandwidth of level output
voltage VAMIF2IN = 15 mV; standard
setting of level DAA 200 300 −kHz
Rooutput resistance −− 500 Ω
RR ripple rejection VDDA6(ripple) = 100 mV (RMS);
fripple = 100 Hz −36 −dB
AM NOISE BLANKER;TEST SIGNAL AND TEST CIRCUIT; see Fig.5
Threshold: pin AMNBHOLD
VODC output voltage 4.3 4.6 5.1 V
tsup suppression time Vpulse = 200 mV (peak);
Vlevel(AMFM) < 1.8 V 6 7.5 10 µs
ftrigger trigger sensitivity frequency Vpulse = 200 mV (peak);
Vleve(AMFM)l < 1.8 V −1000 −Hz
Vpulse = 200 mV (peak);
Vlevel(AMFM) > 2.2 V −− 100 Hz
Vpulse = 20 mV (peak);
Vlevel(AMFM) < 1.8 V −− 100 Hz
Noise detector output: pin TRDSMUTE
Isink(AGC) AM noiseblankerAGCsink
current VTRDSMUTE = 3 V 35 50 65 µA
SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT
mV
20 dB
---------------
mV
20 dB
---------------
Vlevel
VDDA6
----------------
2004 Nov 12 21
Philips Semiconductors Product specification
New In Car Entertainment car radio tuner IC with
Precision Adjacent Channel Suppression (NICE-PACS) TEA6848H
VAGC AM noise blanker AGC
voltage AM mixer 1 input Vi= 0 V 1.9 2.2 2.5 V
FM signal channel
FM RF AGC (FM DISTANCE MODE;DATA BYTE 4: BIT 3=0)
Inputs: pins FMMIXIN1 and FMMIXIN2;
note 10
Vi(RF)(rms) RF input voltage for start of
wideband AGC
(RMS value)
data byte 4: bit 5 = 1, bit6=1 −3−mV
data byte 4: bit 5 = 0, bit6=1 −6−mV
data byte 4: bit 5 = 1, bit6=0 −9−mV
data byte 4: bit 5 = 0, bit6=0 −12 −mV
Pin TFMAGC
Rsource source resistance 4 5 6 kΩ
VO(ref) DC output reference
voltage data byte 4: bit 5 = 0, bit6=0;
VFMMIXIN1-FMMIXIN2 =0V 4.1 4.6 5.1 V
PIN diode drive output: pin IFMAGC
Isink(AGC)(max) maximum AGC sink
current VIFMAGC = 2.5 V;
VTFMAGC =V
O(ref) −0.5 V;
data byte 4: bit 5 = 0, bit6=0,
bit 7 = 0
8 11.5 15 mA
Isource(AGC)(max) maximum AGC source
current VIFMAGC = 2.5 V;
VTFMAGC =V
O(ref) + 0.5 V;
data byte 4: bit 5 = 0, bit6=0,
bit 7 = 0
−15 −11.5 −8mA
Isource(AGC) AGC source current AM mode −15 −11.5 −8mA
VIFMAGC = 2.5 V; data byte 4:
bit 3 = 1 (FM local) −0.65 −0.5 −0.35 mA
Level voltage output: pin V
level(AMFM)
Vth threshold voltage for
narrow-band AGC data byte 4: bit 5 = 0, bit6=0,
bit 7 = 1; keyed AGC 500 950 1400 mV
FM RF MIXER
Reference voltage: pin V
ref(MIX)
Vref reference voltage FM mode 6.5 7.1 7.9 V
AM mode 2.7 3.1 3.4 V
Inputs: pins FMMIXIN1 and FMMIXIN2;
note 10
Vi(RF)(max) maximum RF input voltage 1 dB compression point of
FM mixer output voltage
(peak-to-peak value)
70 100 −mV
Vi(n)(eq) equivalent input noise
voltage Rgen = 200 Ω; RL= 2.6 kΩ−2.6 3.1
Riinput resistance 1.4 2.8 4.2 kΩ
Ciinput capacitance −57pF
SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT
nV
Hz
------------
2004 Nov 12 22
Philips Semiconductors Product specification
New In Car Entertainment car radio tuner IC with
Precision Adjacent Channel Suppression (NICE-PACS) TEA6848H
Outputs: pins MIX1OUT1 and MIX1OUT2;
note 7
Rooutput resistance 100 −−kΩ
Cooutput capacitance 2 3.5 5 pF
Ibias mixer bias current FM mode 4.8 6 7.2 mA
Vo(max)(p-p) maximum output voltage
(peak-to-peak value) 3−−V
FM mixer
gm(conv) conversion
transconductance 8.5 12.5 18
gm(conv)(T) conversion
transconductance variation
with temperature
−−1×10−3−K−1
F noise figure −3 4.6 dB
Rgen(opt) optimum generator
resistance −200 −Ω
IP3 3rd-order intermodulation 113 116 −dBµV
IRR image rejection ratio fRFwanted = 87.5 MHz;
fRFimage = 108.9 MHz 25 30 −dB
data byte 3 = X010X110;
fRFwanted = 162.475 MHz;
fRFimage = 183.875 MHz;weather
band mode; fref = 25 kHz
22 30 −dB
IF AMPLIFIER
G gain RL= 330 Ω; VIFAMPIN =1mV;
note 8 15 17 19 dB
F noise figure −10 13 dB
IP3 3rd-order intermodulation 113 116 −dBµV
Inputs: pins IFAMPIN and IFAMPDEC;
note 8
Vi(max)(p) maximum input voltage
(peak value) 1 dB compression point of
IF amplifier output voltage
(peak value)
200 −−mV
Vi(n)(eq) equivalent input noise
voltage Rgen = 330 Ω; RL= 330 Ω−810
Riinput resistance 270 330 390 Ω
Ciinput capacitance −57pF
Output: pin IFAMPOUT
Vo(max)(p) maximum output voltage
(peak value) 1.2 1.5 −V
Rooutput resistance 270 330 390 Ω
Cooutput capacitance −57pF
SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT
mA
V
---------
VMIX1OUTwanted
VMIX1OUTimage
--------------------------------------
nV
Hz
------------
2004 Nov 12 23
Philips Semiconductors Product specification
New In Car Entertainment car radio tuner IC with
Precision Adjacent Channel Suppression (NICE-PACS) TEA6848H
Tunable filter
Bmax maximum bandwidth data byte 4: bit 1 = 0, bit0=0;
dynamic mode −160 −kHz
Bmin minimum bandwidth data byte 4: bit 1 = 0, bit0=0;
dynamic mode; VTACD = 4.2 V −25 −kHz
B13 bandwidth in weather band
mode −13 −kHz
B60 bandwidth in narrow band
mode data byte 4: bit 1 = 1, bit0=1 −60 −kHz
B90 bandwidth in mid band
mode data byte 4: bit 1 = 1, bit0=0 −90 −kHz
B130 bandwidth in wideband
mode data byte 4: bit 1 = 0, bit0=1 −130 −kHz
PIN VIFBW
Vomonitor output voltage for
IF2 bandwidth fixed bandwidth = narrow −1.35 −V
fixed bandwidth = mid −0.94 −V
fixed bandwidth = wide −0.55 −V
Rooutput resistance −5−kΩ
Adjacent channel detector
MODULATION DETECTOR INPUT:PIN MODDET
Riinput resistance −42.4 −kΩ
Ciinput capacitance −57pF
MODULATION DETECTOR OUTPUT:PIN MODETOUT
Rooutput resistance −33.9 −kΩ
DETECTOR ADJUST:PIN ACDTHRES
Riinput resistance 6.2 7.8 9.4 kΩ
Ciinput capacitance −57pF
FM demodulator and level detector; see Figs 6 and 7
FM DEMODULATOR
FM mixer 2 input: pins FMMIX2IN and FMMIX2DEC;
note 3
Vstart(lim)(rms) start of limiting of RDS
MPX output voltage
(RMS value)
αAF =−3dB −4.5 −µV
Vo(sens)(rms) sensitivity for RDS MPX
output voltage (RMS value) ∆f = 22.5 kHz; fmod = 1 kHz;
de-emphasis = 50 µs
Rgen = 165 Ω;
(S+N)/N = 26 dB −11 −µV
(S+N)/N = 46 dB −90 −µV
SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT
2004 Nov 12 24
Philips Semiconductors Product specification
New In Car Entertainment car radio tuner IC with
Precision Adjacent Channel Suppression (NICE-PACS) TEA6848H
RDS MPX output: pin RDSMPX
(S+N)/N maximum signal plus
noise-to-noise ratio of RDS
MPX output voltage
∆f = 22.5 kHz; fmod = 1 kHz;
de-emphasis = 50 µs;
VFMMIX2IN =10mV
65 68 −dB
THD total harmonic distortion of
RDS MPX output voltage ∆f = 75 kHz; fmod = 1 kHz;
de-emphasis = 50 µs;
VFMMIX2IN = 200 µV to 800 mV
−0.35 0.7 %
αAM AM suppression FM: ∆f = 22.5 kHz; fmod = 1 kHz;
AM: m = 0.3; fmod = 1 kHz;
de-emphasis = 50 µs
VFMMIX2IN =30to70µV2030−dB
VFMMIX2IN = 70 to 500 µV3040 −dB
VFMMIX2IN = 500 µV to 300 mV 35 45 −dB
VFMMIX2IN = 300 mV to 1 V 30 40 −dB
Vo(rms) RDS MPX output voltage
(RMS value) VFMMIX2IN =20µV to 1 V; note 3
∆f = 5 kHz; fmod = 57 kHz 45 50 55 mV
∆f = 22.5 kHz; fmod = 1 kHz 205 230 255 mV
Io(max)(rms) maximum RDS MPX
output current (RMS value) 100 −−µA
Rooutput resistance −− 500 Ω
RLload resistance 20 −−kΩ
CLload capacitance −− 50 pF
B bandwidth RDS MPX
output CL= 0; RL>20kΩ200 300 −kHz
PSRR power supply ripple
rejection fripple = 100 Hz to 20 kHz −40 −dB
FM MPX output: pin FMMPX;
note 3
(S+N)/N maximum signal plus
noise-to-noise ratio of
FM MPX output voltage
∆f = 22.5 kHz; fmod = 1 kHz;
de-emphasis = 50 µs;
VFMMIX2IN =10mV
65 68 −dB
THD total harmonic distortion of
FM MPX output voltage ∆f = 75 kHz; fmod = 1 kHz;
de-emphasis = 50 µs;
VFMMIX2IN = 200 µV to 800 mV
−0.1 0.3 %
αAM AM suppression FM: ∆f = 22.5 kHz; fmod = 1 kHz;
AM: m = 0.3; fmod = 1 kHz;
de-emphasis = 50 µs
VFMMIX2IN =30to70µV2030−dB
VFMMIX2IN = 70 to 500 µV3040 −dB
VFMMIX2IN = 500 µV to 300 mV 35 45 −dB
VFMMIX2IN = 300 mV to 1 V 30 40 −dB
SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT
Vo(rms)
Vo(AM)(rms)
---------------------------
Vo(rms)
Vo(AM)(rms)
---------------------------
2004 Nov 12 25
Philips Semiconductors Product specification
New In Car Entertainment car radio tuner IC with
Precision Adjacent Channel Suppression (NICE-PACS) TEA6848H
Vo(rms) FM MPX output voltage
(RMS value) ∆f = 22.5 kHz; fmod = 1 kHz;
VFMMIX2IN =20µVto1V 205 230 255 mV
∆f = 1.5 kHz; fmod = 1 kHz;
VFMMIX2IN =20µVto1V;
weather band mode
150 230 310 mV
Io(max) maximum FM MPX output
current 100 −−µA
B bandwidth FM MPX output CL= 0; RL>20kΩ200 −−kHz
PSRR power supply ripple
rejection fripple = 100 Hz to 20 kHz −40 −dB
RLload resistance 20 −−kΩ
Rooutput resistance −− 500 Ω
CLload capacitance −− 50 pF
tsw AM to FM switching time VFMMIX2IN = 100 µV−100 150 ms
MPX mute
αmute muting depth data byte 2: bit 7 = 1 (mute) 60 80 −dB
Voffset(DC) DC offset during RDS
update mute pin FMMPX
∆V=V
muted −Vnotmuted
−30 −+30 mV
RDS update: pin TRDSMUTE
VTRDSMUTE voltage at pin TRDSMUTE no mute 5.2 5.7 6.2 V
mute 0.7 1.2 1.7 V
Idch discharge current Vo= 3 V; data byte 2: bit 7 = 1 24 32 38 µA
Ich charge current Vo= 3 V; data byte 2: bit 7 = 0 −38 −32 −24 µA
FM IF LEVEL DETECTOR OUTPUT:PIN Vlevel(AMFM); note 3
Vlevel(AMFM) DC output voltage VFMMIX2IN =10µVto1V 0 −7V
VFMMIX2IN <1µV; standard
setting of level DAA 0.1 0.35 0.9 V
VFMMIX2IN = 1 mV; standard
setting of level DAA 1 1.5 2.1 V
∆Vlevel(AMFM) step size of starting point
adjustment data byte 5: bit 2 = 1, bit1=0,
bit 0 = 0 30 40 50 mV
Vlevel(slope) slope of level voltage VFMMIX2IN = 1 to 300 mV;
standard setting of level slope 650 800 950
∆Vstep step size of slope
adjustment VFMMIX2IN =1mV 45 60 75
Blevel(AMFM) bandwidth of level output
voltage VFMMIX2IN = 10 mV; standard
setting of level DAA 200 300 −kHz
Isource output source current −− −300 µA
Isink output sink current 50 −−µA
Rooutput resistance −− 500 Ω
SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT
∆Vlevel(AMFM)
∆VFMMIX2IN
---------------------------------
mV
20 dB
---------------
mV
20 dB
---------------
2004 Nov 12 26
Philips Semiconductors Product specification
New In Car Entertainment car radio tuner IC with
Precision Adjacent Channel Suppression (NICE-PACS) TEA6848H
Notes
1. Measured between pins XTAL1 and XTAL2.
2. DAA conversion gain formula: ; where
n=0to127.
3. Input parameters of FM mixer 2 measured between pins FMMIX2IN and FMMIX2DEC.
4. Input parameters of AM IF2 measured between pins AMIF2IN and AMIF2DEC.
5. Reference frequency pin FREF: Rext =68kΩ connected to ground activates the 2nd I2C-bus address.
6. Input parameters of AM mixer 1 measured between pins AMMIX1DEC and AMMIX1IN.
7. Output parameters of FM mixer and AM mixer 1 measured between pins MIX1OUT1 and MIX1OUT2.
8. Input parameters of AM mixer 2 measured between pins IFAMPIN and IFAMPDEC.
9. Output parameters of AM mixer 2 measured between pins AMMIX2OUT1 and AMMIX2OUT2.
10. Input parameters of FM mixer measured between pins FMMIXIN1 and FMMIXIN2.
RR ripple rejection fripple = 100 Hz;
VDDA6(ripple) = 100 mV (RMS) −40 −dB
PIN Vlevel(ACD)
Rooutput resistance 6.4 8 9.6 kΩ
RDS update
Output: pin AFHOLD
Isink(max) maximum sink current after first bus transmission with
data byte 0: bit 7 = 1 (start of
RDS update); Vo= 0.5 V
1.0 1.2 1.4 mA
Output: pin AFSAMPLE
Isink(max) maximum sink current no RDS update in progress;
Vo= 0.5 V 1.0 1.2 1.4 mA
SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT
VDAAOUT 2 0.75 n
128
----------0.125+×
×VDAAIN VDAATD
+()×VDAATD
–=
2004 Nov 12 27
Philips Semiconductors Product specification
New In Car Entertainment car radio tuner IC with
Precision Adjacent Channel Suppression (NICE-PACS) TEA6848H
handbook, full pagewidth
10
0
8
THD
(%)
7
6
5
4
3
2
1
0
−70
−60
−50
−40
−30
−20
−10
MHC438
10
−3
10
−2
10
−1
VAMIF2IN (mV)
1
(1)
(6)
10 10
2
10
3
VAMAFIF2
(dB)
(3)
(5)
(4)
(2)
Vlevel(AMFM)
(V)
Fig.3 AM detector and level output.
(1) AF: fIF = 450 kHz; m = 0.3; fmod = 1 kHz; soft mute off.
(2) AF: fIF = 450 kHz; m = 0.3; fmod = 1 kHz; soft mute on.
(3) Noise: unweighted B = 2.15 kHz; soft mute off.
(4) Noise: unweighted B = 2.15 kHz; soft mute on.
(5) Level detector output voltage, default setting.
(6) THD: m = 0.8.
2004 Nov 12 28
Philips Semiconductors Product specification
New In Car Entertainment car radio tuner IC with
Precision Adjacent Channel Suppression (NICE-PACS) TEA6848H
handbook, full pagewidth
6
2
010−310−210−1110102103
MHC439
4
3
1
5
VAMIF2IN (mV)
(2)
(3)
(1)
Vlevel(AMFM)
(V)
Fig.4 AM level voltage.
(1) Level DAA setting byte 5 = FFH.
(2) Level DAA setting byte 5 = 84H (standard setting).
(3) Level DAA setting byte 5 = 00H.
handbook, full pagewidth
MHC440
1 kΩ
1 kΩ
100 Ω
50 Ω
100 Ω
70
71
73
77
78
14
VIFAMPIN
18
oscilloscope,
counter
8.5 V
8.5 V
test signal
4.7 nF
19
TEA6848H
Vlevel(AMFM)
Trep
VXTAL2
Vpulse
Vpulse
Fig.5 Test circuit for AM noise blanker.
Test signal: Trep = 2 ms, tr< 50 ns, tf< 50 ns and duty factor 50%.
VIFAMPIN = 4 V and VXTAL2 =3V.
2004 Nov 12 29
Philips Semiconductors Product specification
New In Car Entertainment car radio tuner IC with
Precision Adjacent Channel Suppression (NICE-PACS) TEA6848H
handbook, full pagewidth
6
0
2
1
3
5
4
MHC441
10−310−210−1110 VFMMIX2IN (mV)
102103
(2)
(3)
Vlevel(AMFM)
(V)
(1)
Fig.6 FM level voltage.
(1) Level DAA setting byte 5 = FFH.
(2) Level DAA setting byte 5 = 84H (standard setting).
(3) Level DAA setting byte 5 = 00H.
2004 Nov 12 30
Philips Semiconductors Product specification
New In Car Entertainment car radio tuner IC with
Precision Adjacent Channel Suppression (NICE-PACS) TEA6848H
handbook, full pagewidth
10
0
−80
−70
−60
−50
−40
−30
−20
−10
MHC442
10−310−210−1VFMMIX2IN (mV)
11010
2103
VFMMPX;
VRDSMPX
(dB)
(2)
(1)
(4)
(3)
6
7
THD
(%)
8
9
0
2
1
3
5
4
(5)
Vlevel(AMFM)
(V)
Fig.7 (S+N)/N, THD and level voltage for FM mode as a function of FM demodulator input voltage.
(1) Output voltage for FMMPX and RDSMPX: fIF = 10.7 MHz; ∆f = 22.5 kHz; fmod = 1 kHz.
(2) Noise: unweighted B = 250 Hz to 15 kHz with de-emphasis 50 µs for FMMPX.
(3) Noise: unweighted B = 250 Hz to 15 kHz with de-emphasis 50 µs for RDSMPX.
(4) THD for FMMPX and RDSMPX.
(5) Level for standard setting of level DAA, byte 5 = 84H.
2004 Nov 12 31
Philips Semiconductors Product specification
New In Car Entertainment car radio tuner IC with
Precision Adjacent Channel Suppression (NICE-PACS) TEA6848H
12 I2C-BUS PROTOCOL
12.1 I2C-bus specification
Informationabout theI2C-buscanbe foundinthebrochure
“The I
2
C-bus and how to use it”
(order number
9398 393 40011).
The standard I2C-bus specification is expanded by the
following definitions.
IC addresses:
•1st IC address C2H: 1100001 R/W
•2nd IC address C0H: 1100000 R/W.
Structure of the I2C-bus logic: slave transceiver with auto
increment.
Subaddresses are not used.
A second I2C-bus address can be selected by connecting
pin FREF via a 68 kΩ resistor to GND.
12.1.1 DATA TRANSFER
Data sequence: address, byte 0, byte 1, byte 2, byte 3,
byte 4, byte 5, byte 6, and byte 7. The data transfer has to
be in this order. The LSB = 0 indicates a WRITE operation
to the TEA6848H.
Bit 7 of each byte is considered the MSB and has to be
transferred as the first bit of the byte.
The data becomes valid at the output of the internal
latches with the acknowledge of each byte. A STOP
condition after any byte can shorten transmission times.
When writing to the transceiver by using the STOP
condition before completion of the whole transfer:
•The remaining bytes will contain the old information
•If the transfer of a byte is not completed, this byte is lost
and the previous information is available.
12.1.2 I2C-BUS PULL-UP RESISTORS
When the IC is used together with the TEA688x or
TEF689x and both SCL and SDA lines are connected via
the I2C-bus to the TEA688x or TEF689x, the pull-up
resistors of the tuner IC should be connected to the digital
supply voltage of the TEA688x or TEF689x. Otherwise an
I2C-bus pull-down can occur switching off the tuner IC
supply when the I2C-bus buffer interface of the TEA688x
or TEF689x is enabled for data transfer to the tuner IC.
12.1.3 FREQUENCY SETTING
For new frequency setting, in both AM and FM mode, the
programmable divider is enabled by setting bit MUTE = 1.
To select an FM frequency, two I2C-bus transmissions are
necessary:
•First: bit MUTE = 1
•Second: bit MUTE = 0.
12.1.4 DEFAULT SETTINGS
No default settings at power-on reset. One I2C-bus
transmission is required to program the IC.
12.1.5 TIMING REQUIREMENTS
Table 1 Timing requirements of I2C-bus software
FUNCTION TIMING
Switching from
FM to AM 400 ms (10 µF at pin CAGC)
Switching from
AM to FM 100 ms (10 µF at pin CAGC; wideband
position has to be set for at least
100 ms to activate speed-up circuitry)
Start-up in FM
mode wideband position has to be set for at
least 100 ms to activate speed-up
circuitry
Switching to
dynamic mode 500 µs (18 nF at pin TACD; wideband
position has to be set for at least
500 µs to activate clamping circuitry at
pin TACD)
2004 Nov 12 32
Philips Semiconductors Product specification
New In Car Entertainment car radio tuner IC with
Precision Adjacent Channel Suppression (NICE-PACS) TEA6848H
12.2 I2C-bus protocol
12.2.1 DATA TRANSFER MODE AND IC ADDRESS
Table 2 Write mode
Notes
1. S = START condition.
2. A = acknowledge.
3. P = STOP condition.
Table 3 Read mode
Notes
1. S = START condition.
2. A = acknowledge.
Table 4 IC address byte
Notes
1. Defined by address pin FREF:
a) 1 = 1st IC address
b) 0 = 2nd IC address.
2. Read or write mode:
a) 0 = write operation to TEA6848H
b) 1 = read operation from TEA6848H.
12.2.2 WRITE MODE:DATA BYTE 0
Table 5 Format of data byte 0
Table 6 Description of data byte 0 bits
S(1) address (write) A(2) data byte(s) A(2) P(3)
S(1) address (read) A(2) data byte 1
IC ADDRESS MODE
1100000/1
(1) R/W(2)
BIT 7 BIT 6 BIT 5 BIT 4 BIT 3 BIT 2 BIT 1 BIT 0
AF PLL14 PLL13 PLL12 PLL11 PLL10 PLL9 PLL8
BIT SYMBOL DESCRIPTION
7AFAlternative frequency. If AF = 0, then normal operation. If AF = 1, then AF (RDS)
update mode.
6 to 0 PLL[14:8] Setting of programmable counter of synthesizer PLL. Upper byte of PLL divider
word.
2004 Nov 12 33
Philips Semiconductors Product specification
New In Car Entertainment car radio tuner IC with
Precision Adjacent Channel Suppression (NICE-PACS) TEA6848H
12.2.3 WRITE MODE:DATA BYTE 1
Table 7 Format of data byte 1
Table 8 Description of data byte 1 bits
12.2.4 WRITE MODE:DATA BYTE 2
Table 9 Format of data byte 2
Table 10 Description of data byte 2 bits
12.2.5 WRITE MODE:DATA BYTE 3
Table 11 Format of data byte 3
Table 12 Description of data byte 3 bits
BIT 7 BIT 6 BIT 5 BIT 4 BIT 3 BIT 2 BIT 1 BIT 0
PLL7 PLL6 PLL5 PLL4 PLL3 PLL2 PLL1 PLL0
BIT SYMBOL DESCRIPTION
7 to 0 PLL[7:0] Setting of programmable counter of synthesizer PLL. Lower byte of PLL divider
word.
BIT 7 BIT 6 BIT 5 BIT 4 BIT 3 BIT 2 BIT 1 BIT 0
MUTE DAA6 DAA5 DAA4 DAA3 DAA2 DAA1 DAA0
BIT SYMBOL DESCRIPTION
7 MUTE FM audio mute. If MUTE = 0, then FM audio not muted. If MUTE = 1, then FM audio
muted; writing to programmable divider and antenna DAA enabled.
6 to 0 DAA[6:0] Setting of antenna digital auto alignment.
BIT 7 BIT 6 BIT 5 BIT 4 BIT 3 BIT 2 BIT 1 BIT 0
IFMT FREF2 FREF1 FREF0 IFPR BND1 BND0 AMFM
BIT SYMBOL DESCRIPTION
7 IFMT IF measuring time. If IFMT = 0, then IF measuring time is 20 ms. If IFMT = 1, then
IF measuring time is 2 ms.
6 to 4 FREF[2:0] Reference frequency for synthesizer. These 3 bits determine the reference
frequency, see Table 13.
3 IFPR IF counter prescaler ratio. If IFPR = 0, then IF prescaler ratio is 40. If IFPR = 1, then
IF prescaler ratio is 10.
2 and 1 BND[1:0] Band switch. These 2 bits select in FM mode band and local or distant, see Table 14; in
AM mode band and AM stereo, see Table 15.
0 AMFM AM or FM switch. If AMFM = 0, then FM mode. If AMFM = 1, then AM mode.
2004 Nov 12 34
Philips Semiconductors Product specification
New In Car Entertainment car radio tuner IC with
Precision Adjacent Channel Suppression (NICE-PACS) TEA6848H
Table 13 Reference frequency setting
Table 14 FM mode
Table 15 AM mode
12.2.6 WRITE MODE:DATA BYTE 4
Table 16 Format of data byte 4
FREF2 FREF1 FREF0 fref (kHz)
000100
100 50
010 25
110 20
001 10
101 10
011 10
111 10
BND1 BND0 FREQUENCY BAND VCO DIVIDER CHARGE PUMP CURRENT
0 0 FM standard 2 130 µA+3mA
0 1 FM Japan 3 130 µA+3mA
1 0 FM East Europe 3 1 mA
1 1 FM weather 1 300 µA
BND1 BND0 FREQUENCY BAND VCO DIVIDER CHARGE PUMP CURRENT
0 0 AM SW mono 10 1 mA
0 1 AM SW stereo 10 1 mA
1 0 AM LW/MW mono 20 1 mA
1 1 AM LW/MW stereo 20 1 mA
BIT 7 BIT 6 BIT 5 BIT 4 BIT 3 BIT 2 BIT 1 BIT 0
KAGC AGC1 AGC0 AMSM/FMBW LODX FLAG BW1 BW0
2004 Nov 12 35
Philips Semiconductors Product specification
New In Car Entertainment car radio tuner IC with
Precision Adjacent Channel Suppression (NICE-PACS) TEA6848H
Table 17 Description of data byte 4 bits
Table 18 Setting of wideband AGC for AM (m = 0.3)
Table 19 Setting of wideband AGC for FM
Table 20 FM IF2 bandwidth setting
BIT SYMBOL DESCRIPTION
7KAGCKeyed FM AGC. If KAGC = 0, then keyed FM AGC is off. If KAGC = 1, then keyed
FM AGC is on.
6 and 5 AGC[1:0] Wideband AGC. These 2 bits set the start value of wideband AGC. For AM,
see Table 18 and for FM, see Table 19.
4 AMSM/FMBW AM soft mute or FM bandwidth. AM mode: if AMSM/FMBW = 0, then AM soft mute
is off; if AMSM/FMBW = 1, then AM soft mute is on. FM mode: see Table 20.
3 LODX Local or distance. If LODX = 0, then distance mode is on. If LODX = 1, then local
mode is on.
2 FLAG Software programmable flag. If FLAG = 0, then flag output pin SWFLAG is HIGH.
If FLAG = 1, then flag output pin SWFLAG is LOW.
1 and 0 BW[1:0] FM IF2 bandwidth setting. See Table 20.
AGC1 AGC0 AM MIXER 1 INPUT VOLTAGE (PEAK VALUE)
(mV)
0 0 150
0 1 275
1 0 400
1 1 525
AGC1 AGC0 FM RF MIXER INPUT VOLTAGE (RMS VALUE)
(mV)
11 3
10 6
01 9
00 12
FMBW BW1 BW0 FM IF2 BANDWIDTH B−3dB
0 0 0 dynamic mode
0 0 1 130 kHz fixed
0 1 0 90 kHz fixed
0 1 1 60 kHz fixed
1 0 0 25 kHz frequency offset alignment mode; bandwidth flag output
switched to frequency offset detector alignment voltage
2004 Nov 12 36
Philips Semiconductors Product specification
New In Car Entertainment car radio tuner IC with
Precision Adjacent Channel Suppression (NICE-PACS) TEA6848H
12.2.7 WRITE MODE:DATA BYTE 5
Table 21 Format of data byte 5
Table 22 Description of data byte 5 bits
Table 23 Standard setting of data byte 5 bits
12.2.8 WRITE MODE:DATA BYTE 6
Table 24 Format of data byte 6
Table 25 Description of data byte 6 bits
12.2.9 WRITE MODE:DATA BYTE 7
Table 26 Format of data byte 7
Table 27 Description of data byte 7 bits
BIT 7 BIT 6 BIT 5 BIT 4 BIT 3 BIT 2 BIT 1 BIT 0
LST4 LST3 LST2 LST1 LST0 LSL2 LSL1 LSL0
BIT SYMBOL DESCRIPTION
7 to 3 LST[4:0] Setting of level DAA starting point. These 5 bits determine the offset of the level
detector output voltage.
2 to 0 LSL[2:0] Setting of level DAA slope. These 3 bits determine the steepness of the level detector
output voltage.
SETTING OF LEVEL DAA STARTING POINT SETTING OF LEVEL DAA SLOPE
LST4 LST3 LST2 LST1 LST0 LSL2 LSL1 LSL0
10000100
BIT 7 BIT 6 BIT 5 BIT 4 BIT 3 BIT 2 BIT 1 BIT 0
TE CF6 CF5 CF4 CF3 CF2 CF1 CF0
BIT SYMBOL DESCRIPTION
7TEThreshold extension. If TE = 0, then threshold extension is off. If TE = 1, then
threshold extension is on.
6 to 0 CF[6:0] Setting of FM IF2 centre frequency DAA. The content of CF6 to CF0 determines the
centre frequency of the 450 kHz filter.
BIT 7 BIT 6 BIT 5 BIT 4 BIT 3 BIT 2 BIT 1 BIT 0
FOF3 FOF2 FOF1 FOF0 FGN3 FGN2 FGN1 FGN0
BIT SYMBOL DESCRIPTION
7 to 4 FOF[3:0] Frequency offset gain alignment.
3 to 0 FGN[3:0] IF2 filter gain alignment.
2004 Nov 12 37
Philips Semiconductors Product specification
New In Car Entertainment car radio tuner IC with
Precision Adjacent Channel Suppression (NICE-PACS) TEA6848H
12.2.10 READ MODE:DATA BYTE 0
Table 28 Format of 1st data byte
Table 29 Description of data byte 0 bits
13 TEST AND APPLICATION INFORMATION
Table 30 List of components for test and application circuits (Figs 8, 9, 10 and 11)
BIT 7 BIT 6 BIT 5 BIT 4 BIT 3 BIT 2 BIT 1 BIT 0
IFC7 IFC6 IFC5 IFC4 IFC3 IFC2 IFC1 IFC0
BIT SYMBOL DESCRIPTION
7 to 0 IFC[7:0] IF counter result. These bits contain the least significant eight bits of the IF counter
result.
SYMBOL PARAMETER TYPE MANUFACTURER
C1 capacitor for VCO tuning 270 pF; type NP0 −
L1 10.7 MHz IF coil P7 PSG P826RC 5134N=S TOKO
L2 450 kHz IF coil P7PSGAE-5078D=S TOKO
L3 oscillator coil E543SNAS-02010 TOKO
L4 FM image rejection 611SNS-1066Y TOKO
L5 FM input transformer 369INS-3076X TOKO
L6 FM antenna coil LQN1HR50; 215 nH MURATA
L7 PIN diode bias LQN1HR21; 500 nH MURATA
L8 connection image reject wire 10 mm/printed coil −
L9 AM input 388BN-1211Z TOKO
R4 resistor for stabilizer 3.3 kΩ; RC12G BC Components
−crystal 20.5 MHz LN-G102-587 NDK
2004 Nov 12 38
Philips Semiconductors Product specification
New In Car Entertainment car radio tuner IC with
Precision Adjacent Channel Suppression (NICE-PACS) TEA6848H
handbook, full pagewidth
DAA
VCO
AM
MIXER 1
AM
MIXER 2
AM
AGC
90°
FM
I/Q MIXER 1
FM
AGC
TUNING SYSTEM
AM-NOISE
DETECTOR
PEAK/
AVERAGE
BLANK
PULSE
÷10/
÷20
÷1/ ÷2/
÷3
90°
TEA6848H
FM
MIXER 2
÷2
19 18 15 14 13 12 11 10 9 87 65
20
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40 41 42 43 44 45 46 47 48 49 50 51
AM
LEVEL
LEVEL
BB156
Vtune
fref
PLL
DGND
22 Ω
1
nF
C1
4.7 kΩ
100 nF
10 kΩ
2.2 kΩ
1.2 kΩ
3.9
nF
100 nF 1.8
pF
2.7
pF
22
Ω
22
nF
L3
3.3
nF
SFE 10.7
MS3
22
Ω22 nF
L1 SFE 10.7
MS3
WB/JAPAN/OIRT
21
SW CONTROL
FLAG
17 16
47
µF
100
nF
220
nF
22
nF
22
Ω
22
nF
22 nF
22
Ω
22 nF
VDDD
ANTENNA
RFGND
4:6
22
Ω
L5
BB814
22 kΩ
L4
BAS16
WB FLAG
BAV99
10 nF
1 nF
270 Ω
BAQ806
220
nF
antenna
2.2 MΩ
5 V
L8
18 pF 215
nH
6.8 pF 1
pF 12
pF
500 nH
1
nF 10
µF
1
nF
1
nF
2.2
kΩ
330
Ω
BA595
100 nF
22 Ω
220
nF
BC847C
1.8 MΩ
150
pF
820
µH
560
Ω
2.2 nF
56
µH
470
µH
100 nF
BF862
2.2
MΩ
10 nF
6.8
µH
1 µF
1 µF
L9
10
kΩ
22 nF
22 µF
220 nF
270
pF
100 kΩ
L7
L6
+
+ +
I2C-bus
I2C-bus
I2C-bus
I2C-bus
I2C-bus
+
+
×
×
×
×
MHC443
A
B
C
D
E
F
G
H
I
L
M
N
K
J
Fig.8 Application diagram (continued in Fig.9).
For list of components see Table 30.
2004 Nov 12 39
Philips Semiconductors Product specification
New In Car Entertainment car radio tuner IC with
Precision Adjacent Channel Suppression (NICE-PACS) TEA6848H
handbook, full pagewidth
RDS
UPDATE
CRYSTAL
OSCILLATOR
POWER
SUPPLY
LEVEL
DAA
IF
COUNT
AM
DEMOD
MUX
IF
FILTER FM
DEMOD
STABI
BUFFER
BANDWIDTH
CONTROL
x1/ x15
AMPLIFIER
MPXOUT
20.5 MHz
4321
52 53 54 55 56 57 58 59 60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
WB
LEVEL
FM AM
SAMPLE
AF HOLD
AF
5 V
AUDIO/IF
AM
RDS/
MPX MPX
FM
3.3 µH
3.3 µH
100
nF
100
nF
8.5 V
IFBWFLAG
SCL
SDA
VIFBW
Vlevel(AMFM)
20.5
MHz
22 Ω
22 nF
L2
SFR450H
8.5 V
IF2GND
VDDA5
5 V
220 nF 6.8
nF
12 kΩ
47
µF1
nF 200
nF
47
µF
390 Ω8.2 nF
33 nF
8.2 nF
33 nF
10 kΩ
820 Ω
120 kΩ
22 nF
10 µF
220 nF
47 nF
47 47 nF
nF
22
nF
R4
3.3 kΩ
VDDA6
VDDA5
AM STEREO
MUTE
RDS
270 pF
I2C-bus
I2C-BUS
I2C-bus
+
+
+
MHC444
A
B
C
D
E
F
G
H
I
L
M
N
K
JTEA6848H
Fig.9 Application diagram (continued from Fig.8).
2004 Nov 12 40
Philips Semiconductors Product specification
New In Car Entertainment car radio tuner IC with
Precision Adjacent Channel Suppression (NICE-PACS) TEA6848H
handbook, full pagewidth
DAA
VCO
AM
MIXER 1
AM
MIXER 2
AM
AGC
90°
FM
I/Q MIXER 1
FM
AGC
TUNING SYSTEM
AM-NOISE
DETECTOR
PEAK/
AVERAGE
BLANK
PULSE
÷10/
÷20
÷1/ ÷2/
÷3
90°
TEA6848H
FM
MIXER 2
÷2
19 18 15 14 13 12 11 10 9 87 65
20
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40 41 42 43 44 45 46 47 48 49 50 51
AM
LEVEL
LEVEL
WB/JAPAN/OIRT
21 17 16
ANTENNA
I2C-bus
I2C-bus
I2C-bus
I2C-bus
I2C-bus
×
×
×
×
MHC445
A
B
C
D
E
F
G
H
I
L
M
N
O
K
J
BB156
Vtune
DGND
22 Ω
4.7 kΩ
22 Ω
1.2 kΩ
2.2 kΩ
10 kΩ
4.7
kΩ
0 Ω
1
nF
270 pF
100 nF
3.9 nF
100 nF 1.8
pF
2.7
pF
22
nF
L3
C1
3.3
nF
SFE10.7
MS3
I-centre
test mode
frequency
22
nF
L1
SFE 10.7
MS3
filter
QI
IF1GND
47
µF
100
nF
220 nF
22
Ω
22
nF
22
nF
22
nF
22
nF
fref
PLL
100 nF 100 nF 100 nF 100 nF
2 Ω
2 Ω
304 Ω
304 Ω
52
Ω
52
Ω330
Ω
330
Ω
AM RF FMIF1
output
IF
output FMIF2
input
IF
input
100 nF
100 kΩ68 kΩrelay 3
relay 2
relay 1
relay 1
RFGND
4:6
L5
BB814 L4
L8 BAS16
WB FLAG
antenna
input
FM RF
input
100
nF
WB
FLAG
1 µF
1 µF
10
kΩ
VCC1 8.5 V
5 V
analog
BAV99
10 nF
1 nF
270 Ω
22 Ω
BAQ806
220
nF
SW
FLAG
100 nF
220
nF
BC847C
1.8 MΩ
2.2 MΩ
10 kΩ
22 Ω
68 kΩ
22 Ω
22 Ω
68 kΩ
150 pF
820
µH
56 µH
470
µH
560
Ω
47 Ω
2.2 nF
BF862
10 nF
L9
22 nF
22 µF
220 nF
270
pF
CONTROL
18 pF 215
nH
6.8 pF
1 pF 12
pF
500 nH
1
nF 10
µF
1
nF
1 nF
2.2
kΩ
330
Ω22
Ω
BA595
L7
L6
6.8 µH
100
nF
100 nF
QI
+
+++
input output test
mode input
+
2.2 MΩ
22 kΩ
47 Ω
Fig.10 Test circuit (continued in Fig.11).
For list of components see Table 30.
2004 Nov 12 41
Philips Semiconductors Product specification
New In Car Entertainment car radio tuner IC with
Precision Adjacent Channel Suppression (NICE-PACS) TEA6848H
handbook, full pagewidth
RDS
UPDATE
CRYSTAL
OSCILLATOR
POWER
SUPPLY
LEVEL
DAA
IF
COUNT
AM
DEMOD
MUX
IF
FILTER FM
DEMOD
STABI
BUFFER
BANDWIDTH
CONTROL
x1/ x15
AMPLIFIER
MPXOUT
20.5 MHz
4321
52 53 54 55 56 57 58 59 60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
WB
LEVEL
FM AM
IFBWFLAG
SCL
SDA
20.5
MHz
22 Ω
22 nF
L2
100 nF jumper
test pin and STOCKO connector
coaxial connector (SMC)
100 nF
2 kΩ
47 Ω
SFR450H
IF2GND
390 Ω8.2 nF
22 nF
22 nF
8.2 nF
8.2 nF
R76 120 kΩ
10 µF
220 nF
47 nF
47 47 nF
nF
22
nF
R4
3.3 kΩ
AM STEREO
MUTE
RDS
270 pF
I2C-bus
I2C-BUS
I2C-bus
+
+
MHC446
68 kΩ
(1.5 kΩ)
100
nF 100
nF 100
nF
68 kΩ
(1.5 kΩ)10 kΩ
10 kΩ
56 kΩ
10 kΩ
820 Ω
10 kΩ
47
µF
47 µF
220
nF 6.8
nF
100
nF
100
nF
47
µF
47
µF
47 µF3.3 µH
3.3 µH
3.3 µH
100 nF
100 nF
100 nF
SDA
SCL
DGND
I2C-bus interface
330
pF 200
nF
2 kΩ
B
A
C
D
E
F
G
H
I
J
M
N
O
L
K
AM IF2 AM IF
output
input
SAMPLE
AF HOLD
AF AUDIO/IF
AM RDS/
MPX MPX
FM
+
+
+
+
TEA6848H
Fig.11 Test circuit (continued from Fig.10).
2004 Nov 12 42
Philips Semiconductors Product specification
New In Car Entertainment car radio tuner IC with
Precision Adjacent Channel Suppression (NICE-PACS) TEA6848H
Table 31 DC operating points
SYMBOL PIN
UNLOADED DC VOLTAGE (V)
AM MODE FM MODE
MIN. TYP. MAX. MIN. TYP. MAX.
FMLIMDCFDB1 1 floating 3.7 4.2 4.8
FMLIMDCFDB2 2 floating 3.7 4.2 4.8
AMIF2DEC 3 2.4 2.7 3.2 floating
IREFFMIF2 4 0 0.4 0.55 0.7
AMNBHOLD 5 4.3 4.6 5.1 8 8.4 −
AMIF2IN 6 2.4 2.7 3.2 floating
IF1GND 7 external 0 external 0
FMMIX2IN 8 0 0.1 −1.5 1.8 2.1
COFFSET 9 floating 3.5 4 4.5
FMMIX2DEC 10 0 0.1 −1.5 1.8 2.1
IFCDAATEST 11 0 0
IFAMPOUT 12 7.2 7.9 −2.4 3 3.6
VDDA1 13 external 8.5 external 8.5
IFAMPIN 14 2.4 2.7 3 1.5 2 2.5
IFAMPDEC 15 2.4 2.7 3 1.5 2 2.5
IF2FILQ 16 0 0
IF2FILI 17 0 0
MIX1OUT1 18 external 8.5 external 8.5
MIX1OUT2 19 external 8.5 external 8.5
VDDA2 20 external 8.5 external 8.5
SWFLAG 21 open-collector
AMMIX1DEC 22 2.3 2.75 3.1 floating
AMMIX1IN 23 2.3 2.75 3.1 floating
VAMCASFB 24 3.7 4.3 4.9 0 0.1 0.2
VAMCAS 25 4.5 5 5.5 0 0.1 1
TAFAMAGC 26 0 2.8 4.6 0 (no WB) 0.3 (no WB) 0.5 (no WB)
THFAMAGC 27 2.5 2.8 3.1 floating
IAMAGC 28 8.5 (external biasing) 1 2 3
Vref(MIX) 29 2.7 3.1 3.4 6.5 7.1 7.9
FMMIXIN1 30 1 1.3 1.6 2.3 2.8 3.3
RFGND 31 external 0 external 0
i.c. 32 −−
FMMIXIN2 33 1 1.3 1.6 2.3 2.8 3.3
WBFLAG 34 0 4 (WB) 4.5 (WB) 5 (WB)
− (FM) <0.5 (FM) − (FM)
IFMAGC 35 5 (external application) 0.1 (external
biasing) −4 (external
biasing)
2004 Nov 12 43
Philips Semiconductors Product specification
New In Car Entertainment car radio tuner IC with
Precision Adjacent Channel Suppression (NICE-PACS) TEA6848H
TFMAGC 36 7.5 8 8.3 3.9 4.6 5.3
TKEYEDAGC 37 floating 1 −7
DAAOUT 38 −0.2 0.3 0.2 −8.25
DAATD 39 floating 0.2 −1.5
DAAIN 40 0 −8.5 0 −8.5
i.c. 41 −−
Vtune 42 0 −8.5 0 −8.5
CPOUT 43 0 −8.5 0 −8.5
VDDA3 44 external 8.5 external 8.5
FREF 45 3.2 3.4 3.7 3.2 3.4 3.7
VDDD 46 external 5 external 5
DGND 47 external 0 external 0
VCOGND 48 external 0 external 0
OSCFDB 49 2.2 2.8 3.4 2.2 2.8 3.4
OSCTNK 50 5 6.1 7.2 5 6.1 7.2
VDDA4 51 external 8.5 external 8.5
MPXDCFDB 52 −2 2.4 2.8
AFSAMPLE 53 0 0.2 0.5 0 0.2 0.5
AFHOLD 54 open-collector 5 open-collector
TRDSMUTE 55 1.7 2.2 2.7 0.7 (muted) 1.2 (muted) 1.7 (muted)
5.2 (not muted) 5.7 (not muted) 6.2 (not muted)
AMAFIF2 56 4 4.3 4.6 floating 3.3
RDSMPX 57 0 3.2 4 4.8
FMMPX 58 0 0.5 1 3.2 4 4.8
VDDA5 59 external 5 external 5
MODDET 60 0 2 2.5 3
VDDA6 61 external 8.5 external 8.5
IFBWFLAG 62 open-collector 8.5 3 (IFBW = 1) 3.3 (IFBW = 1) 4.1 (IFBW = 1)
SDA 63 4.8 5 5.2 4.8 5 5.2
SCL 64 4.8 5 5.2 4.8 5 5.2
VIFBW 65 0 0.1 −0.5 −4
IF2GND 66 external 0 external 0
CINT 67 0 3.2 4 4.8
MODETOUT 68 0 2 3 4
TACD 69 0 3.2 3.6 4
Vlevel(AMFM) 70 0 −70 −7
XTAL1 71 1.7 2.1 2.5 1.7 2.1 2.5
XTALGND 72 external 0 external 0
SYMBOL PIN
UNLOADED DC VOLTAGE (V)
AM MODE FM MODE
MIN. TYP. MAX. MIN. TYP. MAX.
2004 Nov 12 44
Philips Semiconductors Product specification
New In Car Entertainment car radio tuner IC with
Precision Adjacent Channel Suppression (NICE-PACS) TEA6848H
14 INTERNAL CIRCUITRY
Table 32 Equivalent pin circuits
XTAL2 73 1.7 2.1 2.5 1.7 2.1 2.5
Vlevel(ACD) 74 0.5 1 2 0.3 0.5 0.8
ACDTHRES 75 0.37 −0.4 0.37 −0.4
IREF 76 4 4.25 4.5 4 4.25 4.5
AMMIX2OUT1 77 external 8.5 external 8.5
AMMIX2OUT2 78 external 8.5 external 8.5
CAGC 79 3.6 4.3 4.8 1.7 2.5 3.3
Vref(lim) 80 0.5 0.8 1.2 3.6 4.2 4.8
PIN SYMBOL EQUIVALENT CIRCUIT
1 FMLIMDCFDB1
2 FMLIMDCFDB2
3 AMIF2DEC
6 AMIF2IN
SYMBOL PIN
UNLOADED DC VOLTAGE (V)
AM MODE FM MODE
MIN. TYP. MAX. MIN. TYP. MAX.
MDB08
8
1, 2
2 kΩ
3
6
500 Ω
MHC37
5
2004 Nov 12 45
Philips Semiconductors Product specification
New In Car Entertainment car radio tuner IC with
Precision Adjacent Channel Suppression (NICE-PACS) TEA6848H
4 IREFFMIF2
5 AMNBHOLD
7 IF1GND
8 FMMIX2IN
10 FMMIX2DEC
9 COFFSET
11 IFCDAATEST
PIN SYMBOL EQUIVALENT CIRCUIT
MDB08
9
4
80 kΩ
5
MHC37
7
MDB090
10
8
350 Ω
4 kΩ4 kΩ
9
1 MΩ
MHC379
11
MHC453
2004 Nov 12 46
Philips Semiconductors Product specification
New In Car Entertainment car radio tuner IC with
Precision Adjacent Channel Suppression (NICE-PACS) TEA6848H
12 IFAMPOUT
13 VDDA1
14 IFAMPIN
15 IFAMPDEC
16 IF2FILQ
17 IF2FILI
PIN SYMBOL EQUIVALENT CIRCUIT
12 330 Ω
MHC381
MDB091
14
330 Ω
5
kΩ
5
kΩ
15
16
MHC455
17
MHC45
4
2004 Nov 12 47
Philips Semiconductors Product specification
New In Car Entertainment car radio tuner IC with
Precision Adjacent Channel Suppression (NICE-PACS) TEA6848H
18 MIX1OUT1
19 MIX1OUT2
20 VDDA2
21 SWFLAG
22 AMMIX1DEC
23 AMMIX1IN
24 VAMCASFB
25 VAMCAS
PIN SYMBOL EQUIVALENT CIRCUIT
1918
MHC383
21
MHC384
23
22
400 Ω
MHC385
24 10 kΩ
MHC447
25 1 kΩ
MHC448
2004 Nov 12 48
Philips Semiconductors Product specification
New In Car Entertainment car radio tuner IC with
Precision Adjacent Channel Suppression (NICE-PACS) TEA6848H
26 TAFAMAGC
27 THFAMAGC
28 IAMAGC
29 Vref(MIX)
30 FMMIXIN1
33 FMMIXIN2
31 RFGND
PIN SYMBOL EQUIVALENT CIRCUIT
MDB100
26
MDB101
27
28
MHC38
8
29
MHC389
3330
10
kΩ
10
kΩ
MHC390
2004 Nov 12 49
Philips Semiconductors Product specification
New In Car Entertainment car radio tuner IC with
Precision Adjacent Channel Suppression (NICE-PACS) TEA6848H
32 i.c.
34 WBFLAG
35 IFMAGC
36 TFMAGC
37 TKEYEDAGC
38 DAAOUT
PIN SYMBOL EQUIVALENT CIRCUIT
34 200 Ω
50 kΩ
MHC391
35
MHC392
10 kΩ
36
10 kΩ
MHC393
5 kΩ
37
MHC39
4
38
36
kΩ
MHC39
5
2004 Nov 12 50
Philips Semiconductors Product specification
New In Car Entertainment car radio tuner IC with
Precision Adjacent Channel Suppression (NICE-PACS) TEA6848H
39 DAATD
40 DAAIN
41 i.c.
42 Vtune
43 CPOUT
44 VDDA3
PIN SYMBOL EQUIVALENT CIRCUIT
39
MHC39
6
39
43
40 2.5 kΩ
MHC397
42
MHC39
8
39
40
43
MHC39
9
2004 Nov 12 51
Philips Semiconductors Product specification
New In Car Entertainment car radio tuner IC with
Precision Adjacent Channel Suppression (NICE-PACS) TEA6848H
45 FREF
46 VDDD
47 DGND
48 VCOGND
49 OSCFDB
50 OSCTNK
51 VDDA4
52 MPXDCFDB
53 AFSAMPLE
PIN SYMBOL EQUIVALENT CIRCUIT
45 1 kΩ
MHC400
49
3 kΩ
50
MHC401
52
MHC449
53
MHC40
2
2004 Nov 12 52
Philips Semiconductors Product specification
New In Car Entertainment car radio tuner IC with
Precision Adjacent Channel Suppression (NICE-PACS) TEA6848H
54 AFHOLD
55 TRDSMUTE
56 AMAFIF2
57 RDSMPX
PIN SYMBOL EQUIVALENT CIRCUIT
54
MHC40
3
55
MHC404
56
201 kΩ
0.35 pF
MHC405
MDB102
300 Ω
57
2004 Nov 12 53
Philips Semiconductors Product specification
New In Car Entertainment car radio tuner IC with
Precision Adjacent Channel Suppression (NICE-PACS) TEA6848H
58 FMMPX
59 VDDA5
60 MODDET
61 VDDA6
62 IFBWFLAG
63 SDA
PIN SYMBOL EQUIVALENT CIRCUIT
MDB103
280 Ω
58
MDB104
60
MDB095
1 kΩ
50 µA
62
62
FM (FMBW = 1)
AM
63 1 kΩ
MHC410
2004 Nov 12 54
Philips Semiconductors Product specification
New In Car Entertainment car radio tuner IC with
Precision Adjacent Channel Suppression (NICE-PACS) TEA6848H
64 SCL
65 VIFBW
66 IF2GND
67 CINT
68 MODETOUT
69 TACD
PIN SYMBOL EQUIVALENT CIRCUIT
64 1 kΩ
MHC411
MDB09
6
65
MDB097
67
68
MHC450
69
2 kΩ
MHC451
2004 Nov 12 55
Philips Semiconductors Product specification
New In Car Entertainment car radio tuner IC with
Precision Adjacent Channel Suppression (NICE-PACS) TEA6848H
70 Vlevel(AMFM)
71 XTAL1
72 XTALGND
73 XTAL2
74 Vlevel(ACD)
75 ACDTHRES
PIN SYMBOL EQUIVALENT CIRCUIT
70 150 Ω
MHC414
73
72
71
27.6 pF
10 kΩ
20 kΩ
27.6 pF
20 kΩ
10 kΩ
MHC415
MDB212
74
8 kΩ
MDB099
75
2004 Nov 12 56
Philips Semiconductors Product specification
New In Car Entertainment car radio tuner IC with
Precision Adjacent Channel Suppression (NICE-PACS) TEA6848H
76 IREF
77 AMMIX2OUT1
78 AMMIX2OUT2
PIN SYMBOL EQUIVALENT CIRCUIT
76
10 kΩ
MHC41
8
7877
MHC41
9
2004 Nov 12 57
Philips Semiconductors Product specification
New In Car Entertainment car radio tuner IC with
Precision Adjacent Channel Suppression (NICE-PACS) TEA6848H
79 CAGC
80 Vref(lim)
PIN SYMBOL EQUIVALENT CIRCUIT
MDB092
79
AM
79
420 Ω
10 kΩ
FM
80
MHC452
2004 Nov 12 58
Philips Semiconductors Product specification
New In Car Entertainment car radio tuner IC with
Precision Adjacent Channel Suppression (NICE-PACS) TEA6848H
15 PACKAGE OUTLINE
UNIT A
max. A
1
A
2
A
3
b
p
cE
(1)
eH
E
LL
p
Zywv θ
REFERENCES
OUTLINE
VERSION EUROPEAN
PROJECTION ISSUE DATE
IEC JEDEC JEITA
mm 1.6 0.16
0.04 1.5
1.3 0.25 0.27
0.13 0.18
0.12 12.1
11.9 0.5 14.15
13.85 1.45
1.05 7
0
o
o
0.15 0.10.21
DIMENSIONS (mm are the original dimensions)
Note
1. Plastic or metal protrusions of 0.25 mm maximum per side are not included.
0.75
0.30
SOT315-1 136E15 MS-026 00-01-19
03-02-25
D
(1) (1)(1)
12.1
11.9
H
D
14.15
13.85
E
Z
1.45
1.05
D
b
p
e
θ
EA
1
A
L
p
detail X
L
(A )
3
B
20
c
D
H
b
p
E
HA
2
v
M
B
D
ZD
A
ZE
e
v
M
A
X
1
80
61
60 41
40
21
y
pin 1 index
w
M
w
M
0 5 10 mm
scale
LQFP80: plastic low profile quad flat package; 80 leads; body 12 x 12 x 1.4 mm SOT315-1
2004 Nov 12 59
Philips Semiconductors Product specification
New In Car Entertainment car radio tuner IC with
Precision Adjacent Channel Suppression (NICE-PACS) TEA6848H
16 SOLDERING
16.1 Introduction to soldering surface mount
packages
Thistextgives a very brief insight to a complex technology.
A more in-depth account of soldering ICs can be found in
our
“Data Handbook IC26; Integrated Circuit Packages”
(document order number 9398 652 90011).
There is no soldering method that is ideal for all surface
mount IC packages. Wave soldering can still be used for
certainsurface mount ICs, butitisnotsuitableforfine pitch
SMDs. In these situations reflow soldering is
recommended.
16.2 Reflow soldering
Reflow soldering requires solder paste (a suspension of
fine solder particles, flux and binding agent) to be applied
totheprinted-circuit board by screenprinting,stencilling or
pressure-syringe dispensing before package placement.
Driven by legislation and environmental forces the
worldwide use of lead-free solder pastes is increasing.
Several methods exist for reflowing; for example,
convection or convection/infrared heating in a conveyor
type oven. Throughput times (preheating, soldering and
cooling) vary between 100 seconds and 200 seconds
depending on heating method.
Typical reflow peak temperatures range from
215 °C to 270 °Cdepending onsolder paste material. The
top-surface temperature of the packages should
preferably be kept:
•below 225 °C (SnPb process) or below 245 °C (Pb-free
process)
– for all BGA, HTSSON..T and SSOP..T packages
– for packages with a thickness ≥2.5 mm
– for packages with a thickness < 2.5 mm and a
volume ≥350 mm3 so called thick/large packages.
•below 240 °C (SnPb process) or below 260 °C (Pb-free
process) for packages with a thickness < 2.5 mm and a
volume < 350 mm3 so called small/thin packages.
Moisture sensitivity precautions, as indicated on packing,
must be respected at all times.
16.3 Wave soldering
Conventional single wave soldering is not recommended
forsurface mount devices (SMDs)orprinted-circuitboards
with a high component density, as solder bridging and
non-wetting can present major problems.
To overcome these problems the double-wave soldering
method was specifically developed.
If wave soldering is used the following conditions must be
observed for optimal results:
•Use a double-wave soldering method comprising a
turbulent wave with high upward pressure followed by a
smooth laminar wave.
•For packages with leads on two sides and a pitch (e):
– larger than or equal to 1.27 mm, the footprint
longitudinal axis is preferred to be parallel to the
transport direction of the printed-circuit board;
– smaller than 1.27 mm, the footprint longitudinal axis
must be parallel to the transport direction of the
printed-circuit board.
The footprint must incorporate solder thieves at the
downstream end.
•Forpackages with leads onfoursides,thefootprintmust
be placed at a 45°angle to the transport direction of the
printed-circuit board. The footprint must incorporate
solder thieves downstream and at the side corners.
During placement and before soldering, the package must
be fixed with a droplet of adhesive. The adhesive can be
applied by screen printing, pin transfer or syringe
dispensing. The package can be soldered after the
adhesive is cured.
Typical dwell time of the leads in the wave ranges from
3 seconds to 4 seconds at 250 °C or 265 °C, depending
on solder material applied, SnPb or Pb-free respectively.
A mildly-activated flux will eliminate the need for removal
of corrosive residues in most applications.
16.4 Manual soldering
Fix the component by first soldering two
diagonally-opposite end leads. Use a low voltage (24 V or
less) soldering iron applied to the flat part of the lead.
Contact time must be limited to 10 seconds at up to
300 °C.
When using a dedicated tool, all other leads can be
soldered in one operation within 2 seconds to 5 seconds
between 270 °C and 320 °C.
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Philips Semiconductors Product specification
New In Car Entertainment car radio tuner IC with
Precision Adjacent Channel Suppression (NICE-PACS) TEA6848H
16.5 Suitability of surface mount IC packages for wave and reflow soldering methods
Notes
1. Formoredetailedinformation on the BGA packagesrefertothe
“(LF)BGAApplicationNote”
(AN01026);orderacopy
from your Philips Semiconductors sales office.
2. All surface mount (SMD) packages are moisture sensitive. Depending upon the moisture content, the maximum
temperature (with respect to time) and body size of the package, there is a risk that internal or external package
cracks may occur due to vaporization of the moisture in them (the so called popcorn effect). For details, refer to the
Drypack information in the
“Data Handbook IC26; Integrated Circuit Packages; Section: Packing Methods”
.
3. These transparent plastic packages are extremely sensitive to reflow soldering conditions and must on no account
be processed through more than one soldering cycle or subjected to infrared reflow soldering with peak temperature
exceeding 217 °C±10 °C measured in the atmosphere of the reflow oven. The package body peak temperature
must be kept as low as possible.
4. These packages are not suitable for wave soldering. On versions with the heatsink on the bottom side, the solder
cannot penetrate between the printed-circuit board and the heatsink. On versions with the heatsink on the top side,
the solder might be deposited on the heatsink surface.
5. If wave soldering is considered, then the package must be placed at a 45° angle to the solder wave direction.
The package footprint must incorporate solder thieves downstream and at the side corners.
6. Wave soldering is suitable for LQFP, QFP and TQFP packages with a pitch (e) larger than 0.8 mm; it is definitely not
suitable for packages with a pitch (e) equal to or smaller than 0.65 mm.
7. Wave soldering is suitable for SSOP, TSSOP, VSO and VSSOP packages with a pitch (e) equal to or larger than
0.65 mm; it is definitely not suitable for packages with a pitch (e) equal to or smaller than 0.5 mm.
8. Image sensor packages in principle should not be soldered. They are mounted in sockets or delivered pre-mounted
on flex foil. However, the image sensor package can be mounted by the client on a flex foil by using a hot bar
soldering process. The appropriate soldering profile can be provided on request.
9. Hot bar soldering or manual soldering is suitable for PMFP packages.
PACKAGE(1) SOLDERING METHOD
WAVE REFLOW(2)
BGA, HTSSON..T(3), LBGA, LFBGA, SQFP, SSOP..T(3), TFBGA,
VFBGA, XSON not suitable suitable
DHVQFN, HBCC, HBGA, HLQFP, HSO, HSOP, HSQFP, HSSON,
HTQFP, HTSSOP, HVQFN, HVSON, SMS not suitable(4) suitable
PLCC(5), SO, SOJ suitable suitable
LQFP, QFP, TQFP not recommended(5)(6) suitable
SSOP, TSSOP, VSO, VSSOP not recommended(7) suitable
CWQCCN..L(8), PMFP(9), WQCCN..L(8) not suitable not suitable
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Philips Semiconductors Product specification
New In Car Entertainment car radio tuner IC with
Precision Adjacent Channel Suppression (NICE-PACS) TEA6848H
17 DATA SHEET STATUS
Notes
1. Please consult the most recently issued data sheet before initiating or completing a design.
2. The product status of the device(s) described in this data sheet may have changed since this data sheet was
published. The latest information is available on the Internet at URL http://www.semiconductors.philips.com.
3. For data sheets describing multiple type numbers, the highest-level product status determines the data sheet status.
LEVEL DATA SHEET
STATUS(1) PRODUCT
STATUS(2)(3) DEFINITION
I Objective data Development This data sheet contains data from the objective specification for product
development. Philips Semiconductors reserves the right to change the
specification in any manner without notice.
II Preliminary data Qualification This data sheet contains data from the preliminary specification.
Supplementary data will be published at a later date. Philips
Semiconductors reserves the right to change the specification without
notice, in order to improve the design and supply the best possible
product.
III Product data Production This data sheet contains data from the product specification. Philips
Semiconductors reserves the right to make changes at any time in order
to improve the design, manufacturing and supply. Relevant changes will
be communicated via a Customer Product/Process Change Notification
(CPCN).
18 DEFINITIONS
Short-form specification The data in a short-form
specification is extracted from a full data sheet with the
same type number and title. For detailed information see
the relevant data sheet or data handbook.
Limiting values definition Limiting values given are in
accordance with the Absolute Maximum Rating System
(IEC 60134). Stress above one or more of the limiting
values may cause permanent damage to the device.
These are stress ratings only and operation of the device
attheseoratanyotherconditionsabovethosegiveninthe
Characteristics sections of the specification is not implied.
Exposure to limiting values for extended periods may
affect device reliability.
Application information Applications that are
described herein for any of these products are for
illustrative purposes only. Philips Semiconductors make
norepresentation orwarrantythatsuch applicationswillbe
suitable for the specified use without further testing or
modification.
19 DISCLAIMERS
Life support applications These products are not
designed for use in life support appliances, devices, or
systems where malfunction of these products can
reasonably be expected to result in personal injury. Philips
Semiconductorscustomersusingorsellingtheseproducts
for use in such applications do so at their own risk and
agree to fully indemnify Philips Semiconductors for any
damages resulting from such application.
Right to make changes Philips Semiconductors
reserves the right to make changes in the products -
including circuits, standard cells, and/or software -
described or contained herein in order to improve design
and/or performance. When the product is in full production
(status ‘Production’), relevant changes will be
communicated via a Customer Product/Process Change
Notification (CPCN). Philips Semiconductors assumes no
responsibility or liability for the use of any of these
products, conveys no licence or title under any patent,
copyright, or mask work right to these products, and
makes no representations or warranties that these
products are free from patent, copyright, or mask work
right infringement, unless otherwise specified.
2004 Nov 12 62
Philips Semiconductors Product specification
New In Car Entertainment car radio tuner IC with
Precision Adjacent Channel Suppression (NICE-PACS) TEA6848H
20 PURCHASE OF PHILIPS I2C COMPONENTS
Purchase of Philips I2C components conveys a license under the Philips’ I2C patent to use the
components in the I2C system provided the system conforms to the I2C specification defined by
Philips. This specification can be ordered using the code 9398 393 40011.
© Koninklijke Philips Electronics N.V. 2004 SCA76
All rights are reserved. Reproduction in whole or in part is prohibited without the prior written consent of the copyright owner.
The information presented in this document does not form part of any quotation or contract, is believed to be accurate and reliable and may be changed
without notice. No liability will be accepted by the publisher for any consequence of its use. Publication thereof does not convey nor imply any license
under patent- or other industrial or intellectual property rights.
Philips Semiconductors – a w orldwide compan y
Contact information
For additional information please visit http://www.semiconductors.philips.com. Fax: +31 40 27 24825
For sales offices addresses send e-mail to: sales.addresses@www.semiconductors.philips.com.
Printed in The Netherlands R32/03/pp63 Date of release: 2004 Nov 12 Document order number: 9397 750 14272
